1993688
Frage 1
Frage
What carries blood to the lungs for gas exchange and returns blood to the heart?
Antworten
-
Pulmonary trunk
-
Pulmonary circuit
Frage 2
Frage
Which side of the heart receives oxygen-poor blood?
Antworten
-
Right side
-
Both sides
Frage 3
Frage
To where in the body does the systemic circuit supply blood?
Antworten
-
The organs
-
The arteries
Frage 4
Frage
What two major arteries return oxygen poor blood to the right side of the heart?
Antworten
-
Pulmonary trunk and ciliac trunk
-
Superior and inferior vena cava
Frage 5
Frage
What cavity is the heart located in?
Antworten
-
Thoracic cavity
-
Abdominopelvic cavity
Frage 6
Frage
What is located in the mediastinum, between the lungs and deep to the sternum?
Antworten
-
The heart
-
The diaphragm
Frage 7
Frage
What is the bottom of the heart called?
Antworten
-
Apex
-
Aorta
Frage 8
Frage
Also called the parietal pericardium, this is a fibrous layer of dense irregular CT and deep serous layer.
Antworten
-
Pericardial sac
-
pericarial infarction
Frage 9
Frage
The epicardium (serous membrane on the external surface of the heart) is also called what?
Antworten
-
Epicardial sac
-
Visceral pericardium
Frage 10
Frage
What is the space between the parietal and visceral membranes called?
Antworten
-
Pericardial cavity
-
Pericarial sac
Frage 11
Frage
What are the three layers of the heart wall?
Antworten
-
Epicardium, endocardium and pericardium
-
Epicardium, endocardium and myocardium
Frage 12
Frage
Folds in the plasma membrane that interlock cells are called what?
Antworten
-
Interlocked discs
-
Intercalated folds
Frage 13
Frage
What is the function of a mechanical junction?
Antworten
-
Tightly join cells and prevent them from pulling apart when they contract
-
Tightly join cells and help them break apart when they contract
Frage 14
Frage
Channels that allow ions to flow from the cytoplasm of one cell into the next are called what?
Antworten
-
Electrical/gap junctions
-
Electric slide
Frage 15
Frage
Cardiocytes are right in what three things?
Antworten
-
Myoglobin, glycogen and mitochondria
-
Myoglobin, glycogen and ATP
Frage 16
Frage
Collagen and elastic fibers that provide structural support, anchor cardiocytes and electrically insulate chambers are called the...
Antworten
-
Fibrous skeleton
-
Fiber skeletal
Frage 17
Frage
Which receives blood returning to the heart by way of the great veins?
Antworten
-
Atria
-
Ventricles
Frage 18
Frage
What is an auricle?
Antworten
-
Ear-like extension, increases atrial volume
-
Wall that separates the atria
Frage 19
Frage
Which ejects blood into the arteries?
Antworten
-
Atria
-
Ventricles
Frage 20
Frage
Groove that encircles the heart between the atria and ventricles and contains blood vessels...
Antworten
-
Coronary AV sulcus
-
Interventricular sulci
Frage 21
Frage
Anterior and posterior grooves that overlie the IV septum and contains blood vessels...
Antworten
-
Interventricular sulci
-
Interatrial sulci
Frage 22
Frage
Wall between the ventricles
Antworten
-
Interatrial septum
-
Interventricular septum
Frage 23
Frage
What is the purpose of valves?
Antworten
-
Ensure the one-way flow of blood
-
There is no purpose
Frage 24
Frage
Which valves regulate the opening between the atria and the ventricles?
Antworten
-
Atrioventricular AV valves
-
Interventricular IV valves
Frage 25
Frage
The _____ connect valve cusps to papillary muscles, preventing flipping or bulging of the cusps
Antworten
-
Tendons
-
Tendinous cords
Frage 26
Frage
Semilunar SL valves...
Antworten
-
Regulate the flow of blood from the ventricles to the large arteries
-
Regulate the flow of blood from the lower limbs back to the heart
Frage 27
Frage
Which valve controls the opening from the right ventricle into the pulmonary trunk?
Antworten
-
Pulmonary SL valve
-
Pulmonary trunk
Frage 28
Frage
Which valve controls the opening from the left ventricle into the aorta?
Antworten
-
Aortic SL valve
-
Ventricular SL valve
Frage 29
Frage
Failure of a valve to prevent backwards flow of blood?
Antworten
-
Valvular stenosis
-
Valve insufficiency
Frage 30
Frage
When the cusps are stiffened and the opening is constricted by scar tissue, this is called what?
Antworten
-
Valvular stenosis
-
Valve insufficiency
Frage 31
Frage
Regurgitation of blood through and insufficient valve
Antworten
-
Murmur
-
Mumble
Frage 32
Frage
What is mitral valve prolapse?
Antworten
-
When the mitral valve closes before it's expected to
-
When one or more left AV valve cusps bulge into the atrium during ventricular contraction
Frage 33
Frage
What is the meaning of myogenic?
Antworten
-
Signal originates within the heart
-
Signal targets the heart
Frage 34
Frage
Initiates each heartbeat and determines the heart rate
Antworten
-
Sinoatrial SA node -- the pacemaker
-
Autorhythmic
Frage 35
Frage
Receives signal from the SA node and directs it to the ventricles
Antworten
-
Antroventricular AV node
-
Atrioventricular AV bundle
Frage 36
Frage
Nervelike processes that arise from the ends of the bundle
Antworten
-
Perkins fibers
-
Purkinje fibers
Frage 37
Frage
The _____ rhythm is the NORMAL heartbeat triggered by the SA node (70-80 bpm)
Antworten
-
Sinus
-
Coronary
Frage 38
Frage
AV node takes over the heart rhythm is SA node is damaged, called the _____ rhythm
Antworten
-
Nodal
-
Sinus
Frage 39
Frage
In the SA node, a slow inflow of Sodium (Na) causes gradual depolarization. This is called...
Antworten
-
Pacemaker physiology
-
Pacemaker potential
Frage 40
Frage
When the pacemaker potential reaches threshold, _____ channels open and _____ flows in, producing rapid depolarization
Antworten
-
Calcium (Ca)
-
Potassium (K)
Frage 41
Frage
At peak, _____ channels open and _____ leaves the cell, causing repolarization
Antworten
-
Calcium (Ca)
-
Potassium (K)
Frage 42
Frage
Once the potassium channels close, what happens to the pacemaker potential?
Antworten
-
Nothing
-
It starts over
Frage 43
Frage
An ECG or electrocardiogram is a composite recording of what?
Antworten
-
All the action potential produced by the heart
-
The German spelling
Frage 44
Frage
A pressure difference between two points causes a fluid to flow from _____ pressure to _____ pressure (pressure gradient)
Antworten
-
High; Low
-
Low; High
Frage 45
Frage
What are the four phases of the cardiac cycle?
Antworten
-
-Ventricular filling -Isovolumetric contraction -Ventricular ejection -Isovolumetric relaxation
-
-Ventricles fill -Blood stays -Ventricles eject -Blood leaves
Frage 46
Frage
The amount of blood ejected by each ventricle in ONE minute
Antworten
-
Cardiac arrest
-
Cardiac output
Frage 47
Frage
WHAT increases both heart rate and stroke volume?
Antworten
-
McDonalds
-
Exercise
Frage 48
Frage
Resting heart rate ABOVE 100 bpm; resting heart rate BELOW 60 bpm
Antworten
-
Tachycardia; Bradycardia
-
Bradycardia, Tachycardia
Frage 49
Frage
Where are the cardiac centers located?
Antworten
-
Medulla oblongata
-
Medullary
Frage 50
Frage
What is the cardiostimulatory effect?
Antworten
-
Stimulation of the cardiac muscle
-
Transmission of signals by way of the SNS to the SA node, AV node and myocardium to speed up the HR
Frage 51
Frage
What is the cardioinhibitory effect?
Antworten
-
Stopping the heart
-
Transmission of signals by way of the vagus nerve to the SA and AV nodes to slow the HR
Frage 52
Frage
Which receptors send signals to the medulla in response to bp changes?
Antworten
-
Baro
-
Chemo
Frage 53
Frage
Which receptors send signals to the medulla in response to increase CO2, H or O2 to increase HR?
Antworten
-
Chem
-
Baro
Frage 54
Frage
Hyperkalemia is what?
Antworten
-
Too much potassium in the blood
-
Too little potassium in the blood
Frage 55
Frage
Hypocalcemia is what?
Antworten
-
Too little calcium in the blood
-
Too much calcium in the blood
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.