Study Guide: Axial Muscles

Question 1 of 33

1

An entire skeletal muscle is covered by a coarse sheath called

Select one of the following:

endomysium
perimysium
epimysium
aponeurosis

Explanation

Question 2 of 33

1

Muscles that are arranged like the feathers in a plume are described as

Select one of the following:

parallel
convergent
sphincter
pennate

Explanation

Question 3 of 33

1

An aponeurosis is

Select one of the following:

broad and flat
tube shaped
featherlike
none of the above

Explanation

Question 4 of 33

1

Antagonists are muscles that

Select one of the following:

oppose prime movers
facilitate prime movers
stabilize muscles
directly perform movements

Explanation

Question 5 of 33

1

A fixed point about which a rod moves is called a

Select one of the following:

lever
bone
belly
fulcrum

Explanation

Question 6 of 33

1

In first-class levers, the

Select one of the following:

fulcrum is between the pull and the load
load is between the fulcrum and the force
force is between the fulcrum and the load
load and force are equal

Explanation

Question 7 of 33

1

The origin of a muscle is the point of attachment that moves when the muscle contracts.

Select one of the following:

True
False

Explanation

Question 8 of 33

1

Skeletal muscles usually act in groups rather than individually.

Select one of the following:

True
False

Explanation

Question 9 of 33

1

Prime mover and agonist are synonymous.

Select one of the following:

True
False

Explanation

Question 10 of 33

1

The optimum angle of pull of a muscle is generally parallel to the long axis of the bone.

Select one of the following:

True
False

Explanation

Question 11 of 33

1

Tipping the head back, as in looking up at the sky, is an example of the function of a first-class lever.

Select one of the following:

True
False

Explanation

Question 12 of 33

1

Shape: ❌
Location: ❌
Points of attachment: ❌
Number of heads: ❌
Size of muscle: ❌
Function: ❌
Direction of fibers: ❌

Drag and drop to complete the text.

deltoid

brachialis

sternocleidomastoid

quadriceps

gluteus maximus

adductor

rectus

Explanation

Question 13 of 33

1

❌: wrinkling the forehead vertically
❌: grating the teeth during mastication
❌: kissing
❌: raising the eyebrows
❌: flexing the head
❌: closing the eyes

Drag and drop to complete the text.

Corrugator supercilii

Pterygoids

Buccinator

Epicranius

Sternocleidomastoid

Orbicularis oculi

Explanation

Question 14 of 33

1

Label the following diagram

Drag an answer into the correct orange point.

Galea aponeurotica

Temporalis

Occipitalis

Masseter

Sternocleidomastoideus

Buccinator

Depressor angulioris

Orbicularis oris

Zygomaticus major

Corrugator

Orbicularis oculi

Frontalis

Explanation

Question 15 of 33

1

The external oblique compresses the abdomen.

Select one of the following:

True
False

Explanation

Question 16 of 33

1

The rectus abdominis flexes the trunk.

Select one of the following:

True
False

Explanation

Question 17 of 33

1

The levator ani closes the anal canal.

Select one of the following:

True
False

Explanation

Question 18 of 33

1

The external intercostals elevate the ribs.

Select one of the following:

True
False

Explanation

Question 19 of 33

1

The coccygeus muscles and levator ani form most of the pelvic floor.

Select one of the following:

True
False

Explanation

Question 20 of 33

1

The muscles of the anterior and lateral abdominal wall are arranged in 3 layers.

Select one of the following:

True
False

Explanation

Question 21 of 33

1

Label the following diagram: Muscles of the Thorax

Drag an answer into the correct orange point.

External intercostals

Diaphragm

Internal intercostals

Central tendon of diaphragm

Explanation

Question 22 of 33

1

Label the following diagram: Muscles of the trunk and abdominal

Drag an answer into the correct orange point.

Deltoid

Pectoralis major

Latissimus dorsi

Serratus anterior (anatomical right)

Linea alba

Rectus abdominus

External oblique

Inguinal ligament

Internal oblique

Transverse abdominis

Serratus anterior (anatomical left)

Rectus abdominis covered by rectus sheat

Aponeurosis of external oblique

Anterior superior iliac spine

Explanation

Question 23 of 33

1

❌: bends head and neck laterally
❌: elevates ribs
❌: enlarges thorax
❌: "prayer" muscle
❌: provides important postural function
❌: flexes trunk
❌: depresses last rib
❌: extends vertebral column
❌: helps from the floor of the pelvic cavity
❌: assists in laughing

Drag and drop to complete the text.

Semispinalis capitis

External intercostals

Diaphragm

Sternocleidomastoid

Internal oblique

Rectus abdominis

Quadratus lumborum

Erector spinal group

Levator ani

Zygomaticus major

Explanation

Question 24 of 33

1

Fill the blank space to complete the text.

Fascicles are bound together into bundles by a tough connective tissue envelope called the .

Explanation

Question 25 of 33

1

Fill the blank space to complete the text.

muscles have fascicles that radiate out from a small to a wider point of attachment, much like the blades in a fan.

Explanation

Question 26 of 33

1

Fill the blank space to complete the text.

The prime mover is also known as the .

Explanation

Question 27 of 33

1

Fill the blank space to complete the text.

When a muscle shortens, the central body portion called the contracts.

Explanation

Question 28 of 33

1

Fill the blank spaces to complete the text.

Lever systems have four component parts: a lever, a fulcrum, a load and a / .

Explanation

Question 29 of 33

1

Fill the blank space to complete the text.

During the diaphragm flattens.

Explanation

Question 30 of 33

1

Fill the blank space to complete the text.

The muscular pelvic floor filling the diamond-shaped outlet is called the .

Explanation

Question 31 of 33

1

Fill the blank space to complete the text.

A is any rigid bar free to turn about a fixed point called its fulcrum.

Explanation

Question 32 of 33

1

Fill the blank space to complete the text.

The deltoid is so-named because of its descriptive .

Explanation

Question 33 of 33

1

	Created by Alexandra Bozan about 7 years ago