Frage 1
Frage
What is another word for joints?
Antworten
-
Articulations
-
Ligaments
-
Tendons
-
Cartilage
Frage 2
Frage
What is the definition of joints?
Antworten
-
Sites where two or more bones meet
-
Areas where muscles attach to bones
-
Places where tendons and ligaments connect
-
Locations of bone marrow production
Frage 3
Frage
What is the function of joints?
Antworten
-
To give the skeleton mobility and hold the skeleton together
-
To protect internal organs
-
To produce red and white blood cells
-
To store minerals and fats
Frage 4
Frage
What are the types of classifications of joints?
Antworten
-
Structural - based on what material binds the joints and whether a cavity is present
-
Functional - based on movement the joint allows
-
Anatomical - based on the location in the body
-
Both Structural and Functional
Frage 5
Frage
What are the structural types of joints?
Antworten
-
Fibrous
-
Cartilaginous
-
Synovial
-
All of the above
Frage 6
Frage
What are the functional types of joints?
Antworten
-
Synarthroses
-
Amphiarthroses
-
Diarthroses
-
All of the above
Frage 7
Frage
What does synarthroses mean?
Antworten
-
Immovable joints
-
Slightly movable joints
-
Freely movable joints
-
None of the above
Frage 8
Frage
What does amphiarthroses mean?
Antworten
-
Immovable joints
-
Slightly movable joints
-
Freely movable joints
-
None of the above
Frage 9
Frage
What does diarthroses mean?
Antworten
-
Immovable joints
-
Slightly movable joints
-
Freely movable joints
-
None of the above
Frage 10
Frage
What are the types of fibrous joints?
Antworten
-
Sutures
-
Syndesmoses
-
Gomphoses
-
All of the above
Frage 11
Frage
What is not true about fibrous joints?
Antworten
-
Bones are joined by dense fibrous connective tissue
-
No joint cavity is present
-
Most are immovable, depending on the length of tissue fibers
-
They have a joint cavity filled with synovial fluid
Frage 12
Antworten
-
A joint found only in the skull, held together with very short interconnecting fibers, and bone edges interlock
-
A joint held together by a ligament with varying tissue lengths
-
A "peg in socket" fibrous joint with a periodontal ligament that holds tooth in socket
-
A joint that unites the bones with hyaline cartilage
Frage 13
Frage
What is a syndesmosis?
Antworten
-
A joint found only in the skull, held together with very short interconnecting fibers, and bone edges interlock
-
A joint held together by a ligament with varying tissue lengths
-
A "peg in socket" fibrous joint with a periodontal ligament that holds tooth in socket
-
A joint that unites the bones with fibrocartilage
Frage 14
Frage
What is a gomphosis?
Antworten
-
A joint found only in the skull, held together with very short interconnecting fibers, and bone edges interlock
-
A joint held together by a ligament with varying tissue lengths
-
A "peg in socket" fibrous joint with a periodontal ligament that holds tooth in socket
-
A fluid-filled, diarthrotic joint
Frage 15
Frage
What is not true about cartilaginous joints?
Antworten
-
Bones united by cartilage
-
Like fibrous joints, have no joint cavity
-
Not highly movable
-
Include almost all limb joints
Frage 16
Frage
What are the two types of cartilaginous joints?
Antworten
-
Synchondroses and symphyses
-
Syndesmosis and symphyses
-
Synchondroses and syndesmosis
-
Synovial and fibrous
Frage 17
Frage
What are synchondroses?
Antworten
-
Bones united by hyaline cartilage
-
Bones united by fibrocartilage
-
Bones united by dense fibrous tissue
-
Joints allowing free movement in multiple directions
Frage 18
Frage
What are symphyses?
Antworten
-
Bones united by hyaline cartilage
-
Bones united by fibrocartilage
-
Bones united by dense fibrous tissue
-
Joints allowing free movement in multiple directions
Frage 19
Frage
What is true about synovial joints
Antworten
-
Bones separated by fluid-filled joint cavity
-
All are diarthrotic (freely movable) and include almost all limb joints
-
Have bursae and tendon sheaths associated with them
-
All the above
Frage 20
Frage
What are the six general features of synovial joints?
Antworten
-
Articular cartilage, joint (synovial) cavity, articular (joint) capsule, synovial fluid, reinforcing ligaments, nerves & blood vessels
-
Articular cartilage, joint (synovial) cavity, muscle fibers, synovial fluid, reinforcing tendons, cartilage cells
-
Joint (synovial) cavity, articular (joint) capsule, muscle fibers, synovial fluid, reinforcing ligaments, nerve endings
-
Articular cartilage, muscle fibers, joint (synovial) cavity, synovial fluid, reinforcing ligaments, blood plasma
Frage 21
Frage
What are the three factors that influence synovial joint stability?
Antworten
-
The shapes of the articular surfaces, the number & positioning of ligaments, and muscle tone
-
The amount of synovial fluid, the strength of the articular capsule, and bone density
-
The elasticity of the cartilage, the length of the tendons, and the flexibility of the ligaments
-
The size of the joint cavity, the presence of bursae, and the type of connective tissue
Frage 22
Frage
What are bursae and tendon sheaths?
Antworten
-
Types of bones that provide structural support
-
Fibrous joints that connect bones
-
Fluid-filled sacs that reduce friction between adjacent structures during joint activity
-
Types of cartilage that form flexible connections between bones
Frage 23
Frage
What is the difference between bursae and tendon sheaths?
Antworten
-
Bursae are flattened fibrous sacs occurring where ligaments, muscles, skin, tendons, or bones rub together while tendon sheaths are elongated and wrap around a tendon.
-
Bursae connect bones to each other, while tendon sheaths connect muscles to bones.
-
Bursae are found only in the lower limbs, while tendon sheaths are found only in the upper limbs.
-
Bursae produce synovial fluid, while tendon sheaths produce cartilage.
Frage 24
Frage
What is true of the articular cartilage of synovial joints?
Antworten
-
They consist of fibrocartilage covering the ends of bones and provide flexibility to the joint.
-
They consist of hyaline cartilage covering the ends of bones and prevent them from being crushed.
-
They consist of elastic cartilage covering the ends of bones and allow extensive movement.
-
They consist of fibrous tissue covering the ends of bones and limit joint mobility.
Frage 25
Frage
What is true of the cavity of synovial joints?
Antworten
-
They are large, air-filled spaces that provide cushioning between bones.
-
They are small, fluid-filled potential spaces that are unique to synovial joints and can expand if fluid accumulates from inflammation.
-
They are filled with cartilage that aids in shock absorption.
-
They contain muscle fibers that enhance joint movement.
Frage 26
Frage
What is untrue of the articular capsule of synovial joints?
Antworten
-
It is two layers thick and encloses the synovial cavity.
-
The tough external fibrous layer is composed of dense irregular connective tissue.
-
The inner synovial membrane is composed of loose connective tissue that makes synovial fluid.
-
The inner synovial membrane is composed of dense regular connective tissue that makes synovial fluid.
Frage 27
Frage
What is true about synovial fluid?
Antworten
-
Viscous, slippery filtrate of plasma and hyaluronic acid
-
Lubricates and nourishes articular cartilage
-
Contains phagocytic cells to remove microbes and debris
-
All the above
Frage 28
Frage
What are the different types of reinforcing ligaments in synovial joints?
Antworten
-
Medial, lateral, and posterior ligaments
-
Capsular, extracapsular, and intracapsular ligaments
-
Superior, inferior, and anterior ligaments
-
Long, short, and flat ligaments
Frage 29
Frage
In synovial joints, what are capsular reinforcing ligaments?
Antworten
-
Thickened parts of the fibrous layer of the articular capsule
-
Distinct ligaments found outside the articular capsule
-
Distinct ligaments found deep to the articular capsule and covered by synovial membrane.
-
None of the above
Frage 30
Frage
In synovial joints, what are extracapsular reinforcing ligaments?
Antworten
-
Thickened parts of the fibrous layer of the articular capsule
-
Distinct ligaments found outside the articular capsule
-
Distinct ligaments found deep to the articular capsule and covered by synovial membrane.
-
None of the above
Frage 31
Frage
In synovial joints, what are intracapsular reinforcing ligaments?
Antworten
-
Thickened parts of the fibrous layer of the articular capsule
-
Distinct ligaments found outside the articular capsule
-
Distinct ligaments found deep to the articular capsule and covered by synovial membrane.
-
None of the above
Frage 32
Frage
What do the nerve fibers in synovial joints do?
Antworten
-
They secrete synovial fluid to lubricate the joint.
-
They provide structural support to the joint capsule.
-
They facilitate muscle contraction for joint movement.
-
They detect pain and monitor joint stretch and position.
Frage 33
Frage
All muscles attach to bone or connective tissue at no fewer than two points. What are these points called?
Antworten
-
The origin is attached to the immovable bone and the insertion is attached to the movable bone.
-
The insertion is attached to the immovable bone and the origin is attached to the movable bone.
-
The anchoring point is attached to the immovable bone and the junction point is attached to the movable bone.
-
The junction point is attached to the immovable bone and the anchroing point is attached to the movable bone.
Frage 34
Frage
How does body movement occur?
Antworten
-
When bones glide smoothly over each other
-
When muscles contract across joints and their insertion moves toward their origin
-
When ligaments stretch and return to their original shape
-
When tendons push bones away from each other
Frage 35
Frage
What terms describe the range of motion allowed by synovial joints?
Antworten
-
Fixed, semi-fixed, and freely movable
-
Nonaxial, uniaxial, biaxial, multiaxial
-
Single-plane, double-plane, triple-plane, quad-plane
-
Limited, moderate, extensive, unrestricted
Frage 36
Frage
What does nonaxial mean?
Frage 37
Frage
What does uniaxial mean?
Frage 38
Frage
What does biaxial mean?
Frage 39
Frage
What does multiaxial mean?
Frage 40
Frage
What are the three general types of body movements?
Antworten
-
Flexion, extension, hyperextension
-
Gliding, angular movements, rotation
-
Abduction, adduction, circumduction
-
Supination, pronation, inversion
Frage 41
Frage
What are gliding movements like those that occur at the intercarpal joints of the wrist?
Antworten
-
Rotating one bone around its long axis
-
Bending a joint to decrease the angle between two bones
-
Sliding the flat surfaces of two bones across each other
-
Moving a limb away from the midline of the body
Frage 42
Frage
Which of these are types of angular movements?
Frage 43
Frage
What are angular movements?
Antworten
-
Movements that rotate one bone around its long axis
-
Movements that increase or decrease the angle between two bones and may occur in any plane of the body
-
Movements that slide the flat surfaces of two bones across each other
-
Movements that move a limb away from or toward the midline of the body
Frage 44
Antworten
-
Decreasing the angle between two bones, usually in the sagittal plane
-
Increasing the angle between two bones, usually in the sagittal plane
-
Moving a limb away from the body midline in the frontal plane
-
Moving a limb toward the body midline in the frontal plane
Frage 45
Frage
Which of these movements is not flexion?
Antworten
-
Bending the head forward on the chest
-
Bending the body trunk from a straight to an angled position
-
Lifting the arm in an anterior direction
-
Spreading toes apart
Frage 46
Antworten
-
Decreasing the angle between two bones, usually in the sagittal plane
-
Increasing the angle between two bones, usually in the sagittal plane
-
Moving a limb toward the body midline in the frontal plane
-
Sliding the flat surfaces of two bones across
each other
Frage 47
Frage
Which of these movements is an extension?
Antworten
-
Straightening a flexed limb or body part
-
Angling the neck backwards
-
Bending the knee backwards
-
Rotating the head left
Frage 48
Frage
What is hyperextension?
Antworten
-
Bending a joint to decrease the angle between two bones
-
Moving a limb away from the midline of the body
-
Sliding the flat surfaces of two bones across each other
-
Extending a limb or body part beyond the anatomical position
Frage 49
Antworten
-
Moving a limb away from the body midline in the frontal plane
-
Moving a limb toward the body midline in the frontal plane
-
Moving a limb or finger so that it describes a cone in space
-
Turning a bone around its longitudinal axis
Frage 50
Frage
Which of these movements is not an abduction?
Antworten
-
Moving a limb away from the midline of the body
-
Raising the arm laterally at the shoulder
-
Spreading the fingers or toes apart
-
Lateral bending of the trunk away from the body midline in the frontal plane
Frage 51
Antworten
-
Moving a limb away from the body midline in the frontal plane
-
Moving a limb toward the body midline in the frontal plane
-
Decreasing the angle between two bones, usually in the sagittal plane
-
Increasing the angle between two bones, usually in the sagittal plane
Frage 52
Frage
What is circumduction?
Antworten
-
Moving a limb or finger so that it describes a cone in space
-
Rotating toward the median plane
-
Rotating away from the median plane
-
Turning a bone around its longitudinal axis
Frage 53
Frage
Why is circumduction an angular movement?
Antworten
-
It involves a rotational movement around a central axis
-
It consists of flexion, abduction, extension, and adduction performed in succession
-
It slides the flat surfaces of two bones across each other
-
It moves a limb in a straight line away from the body
Frage 54
Frage
What is a rotation movement?
Antworten
-
Turning a bone around its longitudinal axis
-
Moving a limb or finger so that it describes a cone in space
-
Sliding the flat surfaces of two bones across
each other
-
Decreasing the angle between two bones, usually in the sagittal plane
Frage 55
Frage
What are medial and lateral rotations?
Antworten
-
Medial rotates towards the median plane and lateral rotates away from the median plane
-
Medial rotates away from the median plane and lateral rotates towards the median plane
-
Medial rotates in a circular motion and lateral rotates in a linear motion
-
Medial rotates upwards and lateral rotates downwards
Frage 56
Frage
What are supination and pronation movements?
Antworten
-
Supination involves the radius rotating over the ulna so the palm points downward, while pronation involves the radius and ulna being parallel so the palm points upward
-
Pronation involves the radius rotating over the ulna so the palm points downward, while supination involves the radius and ulna being parallel so the palm points upward
-
Supination involves the radius rotating over the ulna so the palm points upward, while pronation involves the radius and ulna being parallel so the palm points downward
-
Pronation involves the radius rotating over the ulna so the palm points upward, while supination involves the radius and ulna being parallel so the palm points downward
Frage 57
Frage
What is dorsiflexion and plantar flexion?
Antworten
-
Dorsiflexion lifts the foot so that its superior surface approaches the shin and plantar flexion depresses the foot so the toes are pointed.
-
Plantar flexion lifts the foot so that its superior surface approaches the shin and dorsiflexion depresses the foot so the toes are pointed.
-
Dorsiflexion turns the sole of the foot medially and plantar flexion turns the sole of the foot laterally.
-
Plantar flexion turns the sole of the foot medially and dorsiflexion turns the sole of the foot laterally.
Frage 58
Frage
What is inversion and eversion?
Antworten
-
Inversion turns the sole of the foot medially and eversion turns the sole of the foot laterally.
-
Eversion turns the sole of the foot medially and inversion turns the sole of the foot laterally.
-
Inversion lifts a body part superiorly while eversion moves the inverted part inferiorly.
-
Eversion lifts a body part superiorly while inversion moves the everted part inferiorly.
Frage 59
Frage
What are protraction and retraction movements?
Antworten
-
The mandible is protracted when you just our your jaw and retracted when you bring it back.
-
The mandible is retracted when you just our your jaw and protracted when you bring it back.
-
Retraction is a portion of the body being moved forward on a plane parallel to the ground and protraction is a movement that results in the retracted portion of the body being moved on a parallel plane, back to its original position.
-
Scapular protraction pulls the shoulder blades together toward the spine and scapular retraction is when the scapulae move laterally away from the spine.
Frage 60
Frage
What are elevation and depression movements?
Antworten
-
Elevation means lifting a body part superiorly and depression moves the elevated part inferiorly.
-
Depression means lifting a body part superiorly and elevation moves the depressed part inferiorly.
-
Elevation is a nonangular anterior movement in a transverse plane and depression is the posterior movement.
-
Depression is a nonangular anterior movement in a transverse plane and elevation is the posterior movement.
Frage 61
Frage
What is the opposition movement?
Antworten
-
Bringing the thumb and a finger tip together across the palm
-
Moving the thumb in a circular motion
-
Moving the thumb towards the midline
-
Moving the thumb away from the midline
Frage 62
Frage
What are the different types of synovial joints?
Frage 63
Frage
What are plane synovial joints?
Antworten
-
The shape of its articulating surfaces are flat and the only type of movements it can make are nonaxial.
-
They have a cylindrical surface that fits a in trough and it uses flexion and extension to make uniaxial movement.
-
They have a rounded surface (axle) that fits into a ring/sleeve and it uses rotations to make uniaxial movement.
-
They have an oval protuberance that fits into an elliptical cavity and it is capable of biaxial movements of all kinds except rotation & opposition.
Frage 64
Frage
What are hinge synovial joints?
Antworten
-
They have a cylindrical surface that fits a in trough and it uses flexion and extension to make uniaxial movement.
-
They have a rounded surface (axle) that fits into a ring/sleeve and it uses rotations to make uniaxial movement.
-
They have an oval protuberance that fits into an elliptical cavity and it is capable of biaxial movements of all kinds except rotation & opposition.
-
They have a concave surface that fits in a convex surface and it is capable of biaxial movements of all kinds (including opposition) except rotation.
Frage 65
Frage
What are pivot synovial joints?
Antworten
-
They have a rounded surface (axle) that fits into a ring/sleeve and it uses rotations to make uniaxial movement.
-
They have an oval protuberance that fits into an elliptical cavity and it is capable of biaxial movements of all kinds except rotation & opposition.
-
They have a concave surface that fits in a convex surface and it is capable of biaxial movements of all kinds (including opposition) except rotation.
-
They have a spherical head that fits in a cup and is capable of multiaxial movement of all kinds except gliding and opposition.
Frage 66
Frage
What are condylar synovial joints?
Antworten
-
They have an oval protuberance that fits into an elliptical cavity and it is capable of biaxial movements of all kinds except rotation & opposition.
-
They have a concave surface that fits in a convex surface and it is capable of biaxial movements of all kinds (including opposition) except rotation.
-
They have a spherical head that fits in a cup and is capable of multiaxial movement of all kinds except gliding and opposition.
-
The shape of its articulating surfaces are flat and the only type of movements it can make are nonaxial.
Frage 67
Frage
What are saddle synovial joints?
Antworten
-
They have a concave surface that fits in a convex surface and it is capable of biaxial movements of all kinds (including opposition) except rotation.
-
They have a spherical head that fits in a cup and is capable of multiaxial movement of all kinds except gliding and opposition.
-
The shape of its articulating surfaces are flat and the only type of movements it can make are nonaxial.
-
They have a cylindrical surface that fits a in trough and it uses flexion and extension to make uniaxial movement.
Frage 68
Frage
What are ball-and-socket synovial joints?
Antworten
-
They have a spherical head that fits in a cup and is capable of multiaxial movement of all kinds except gliding and opposition.
-
The shape of its articulating surfaces are flat and the only type of movements it can make are nonaxial.
-
They have a cylindrical surface that fits a in trough and it uses flexion and extension to make uniaxial movement.
-
They have a rounded surface (axle) that fits into a ring/sleeve and it uses rotations to make uniaxial movement.
Frage 69
Frage
Which of these are a plane joint?
Frage 70
Frage
Which of these are a hinge joint?
Antworten
-
Elbow joints
-
Proximal radioulnar joints
-
Wrist joints and knuckle joints (metacarpophalangeal)
-
Carpometacarpal joints of the thumbs
Frage 71
Frage
Which of these are a pivot joint?
Antworten
-
Proximal radioulnar joints
-
Wrist joints and knuckle joints (metacarpophalangeal)
-
Carpometacarpal joints of the thumbs
-
Shoulder joints and hip joints
Frage 72
Frage
Which of these are condylar joints?
Antworten
-
Wrist joints and knuckle joints (metacarpophalangeal)
-
Carpometacarpal joints of the thumbs
-
Shoulder joints and hip joints
-
Intercarpal joints
Frage 73
Frage
Which of these are saddle joints?
Frage 74
Frage
Which of these are ball-and-socket joints?
Frage 75
Frage
What is true of a cartilage tear?
Antworten
-
Cartilage rarely repairs itself and the fragments may cause joint to lock or bind
-
Repaired with arthroscopic surgery to remove cartilage fragments which renders the joint less stable but more mobile (complete removal leads to osteoarthritis)
-
Caused when articular cartilage is subjected to compression and shear stress at the same time
-
All of the above
Frage 76
Frage
What is true of a sprain?
Antworten
-
Reinforcing ligaments are stretched or torn
-
Partial tears repair very slowly because of poor vascularization
-
If torn completely, 3 options: ends of ligaments sewn together, replaced with grafts, allow time and immobilization for healing
-
All of the above
Frage 77
Frage
What is untrue of a dislocation?
Antworten
-
Accompanied by sprains, inflammation, and difficulty moving joint
-
Caused by serious falls or contact sports where the bones are forced out of alignment
-
Must be reduced to treat (aka bone ends returned to their proper positions)
-
Also called a subluxation
Frage 78
Frage
What is a subluxation?
Antworten
-
A partial dislocation of a joint
-
Inflammation of bursa, usually caused by blow or friction
-
Inflammation of tendon sheaths, typically caused by overuse
-
Over 100 different types of inflammatory or degenerative diseases that damage the joints
Frage 79
Antworten
-
Inflammation of bursa, usually caused by blow or friction
-
Inflammation of tendon sheaths, typically caused by overuse
-
Over 100 different types of inflammatory or degenerative diseases that damage
joints
-
A partial dislocation of a joint
Frage 80
Frage
What is tendonitis?
Antworten
-
Over 100 different types of inflammatory or degenerative diseases that damage
joints
-
A partial dislocation of a joint
-
Inflammation of tendon sheaths, typically caused by overuse
-
Inflammation of bursa, usually caused by blow or friction
Frage 81
Antworten
-
Over 100 different types of inflammatory or degenerative diseases that damage
joints
-
Inflammation of bursa, usually caused by blow or friction
-
Inflammation of tendon sheaths, typically caused by overuse
-
A partial dislocation of a joint
Frage 82
Frage
What is untrue of arthritis?
Antworten
-
Most widespread crippling disease in North America.
-
Symptoms: pain, stiffness, and swelling of joint
-
Acute forms: caused by bacteria, treated with antibiotics
-
Acute forms: osteoarthritis, rheumatoid arthritis, and gouty arthritis
Frage 83
Frage
What is untrue of Osteoarthritis (OA)?
Antworten
-
Most common type of arthritis and is an irreversible, degenerative (“wear-and-tear”) arthritis
-
Joints may be stiff and make crunching noise referred to as crepitus, especially upon rising
-
Treatment: moderate activity, mild pain relievers, capsaicin creams
-
OA is not usually part of normal aging process
Frage 84
Frage
Which statement best describes the pathophysiology of osteoarthritis?
Antworten
-
Osteoarthritis may reflect excessive release of enzymes that break down articular cartilage.
-
Osteoarthritis is characterized by inflammation of the joint capsule and excessive production of synovial fluid.
-
Osteoarthritis results from infection of the joints by bacteria or viruses.
-
Osteoarthritis is primarily caused by autoimmune reactions targeting the synovial membrane.
Frage 85
Frage
What is true of gouty arthritis?
Antworten
-
It typically affects joint at base of big toe and in untreated gouty arthritis, bone ends fuse and immobilize joint
-
Deposition of uric acid crystals in joints and soft
tissues, followed by inflammation
-
Treatment: drugs, plenty of water, avoidance of alcohol and foods high in purines (such as liver, kidneys, and sardines)
-
All of the above
Frage 86
Frage
How do you treat rheumatoid arthritis?
Antworten
-
Steroidal and nonsteroidal anti-inflammatory drugs to decrease pain and inflammation
-
Disruption of destruction of joints by suppressing immune system which slows the autoimmune reaction. Some agents target tumour necrosis factor to block action of inflammatory chemicals
-
Can replace joint with prosthesis
-
All of the above
Frage 87
Frage
What is the first step of rheumatoid arthritis?
Antworten
-
Inflammation of synovial membrane (synovitis) of affected joint
-
Inflammatory blood cells migrate to joint, release inflammatory chemicals that destroy tissues
-
Synovial fluid accumulates, causing joint swelling
-
Inflamed synovial membrane thickens into abnormal pannus tissue that clings to articular cartilage
Frage 88
Frage
What is the second step of rheumatoid arthritis?
Antworten
-
Inflammatory blood cells migrate to joint, release inflammatory chemicals that destroy tissues
-
Synovial fluid accumulates, causing joint swelling
-
Inflamed synovial membrane thickens into abnormal pannus tissue that clings to articular cartilage
-
Pannus erodes cartilage, scar tissue forms and connects articulating bone ends (ankylosis)
Frage 89
Frage
What is the third step of rheumatoid arthritis?
Antworten
-
Synovial fluid accumulates, causing joint swelling
-
Inflamed synovial membrane thickens into abnormal pannus tissue that clings to articular cartilage
-
Pannus erodes cartilage, scar tissue forms and connects articulating bone ends (ankylosis)
-
Inflammation of synovial membrane (synovitis) of affected joint
Frage 90
Frage
What is the fourth step of rheumatoid arthritis?
Antworten
-
Inflamed synovial membrane thickens into abnormal pannus tissue that clings to articular cartilage
-
Pannus erodes cartilage, scar tissue forms and connects articulating bone ends (ankylosis)
-
Inflammation of synovial membrane (synovitis) of affected joint
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Inflammatory blood cells migrate to joint, release inflammatory chemicals that destroy tissues
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What is the last step of rheumatoid arthritis?
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Pannus erodes cartilage, scar tissue forms and connects articulating bone ends (ankylosis)
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Inflammation of synovial membrane (synovitis) of affected joint
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Inflammatory blood cells migrate to joint, release inflammatory chemicals that destroy tissues
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Synovial fluid accumulates, causing joint swelling
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What is pannus tissue?
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Healthy cartilage found in joints.
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Scar tissue formed after joint replacement surgery.
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Abnormal tissue growth in the synovial lining of joints.
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Fibrous tissue connecting muscle to bone.
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Inflammation of the synovial membrane.
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Abnormal bone fusion, leading to stiffness and immobility of a joint.
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Degeneration of articular cartilage.
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Excessive release of enzymes that break down articular cartilage.
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What is untrue of rheumatoid arthritis?
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Chronic and inflammatory
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Has a known cause
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Is an autoimmune disease (immune system attacks own cells)
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Signs and symptoms include joint pain and swelling (usually bilateral), anemia, osteoporosis, muscle weakness, and cardiovascular problems