Anatomy And Physiology Questions - The Cardiovascular System: The Heart

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Anatomy And Physiology Questions - The Cardiovascular System: The Heart
Questions about the heart. Related to the 'Maturity 1' case unit. One or two questions from the "Fetal" case unit as well.

  
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1.  Cardiac muscle fibres electrically connect to neighbouring fibres by
A.
B.
C.
D.
E.
2.  This consists of mesothelium and connective tissue.
A.
B.
C.
D.
E.
3.  This is the correct sequence of structures that allows the normal sequence of excitation to progress through the heart.
A.
B.
C.
D.
E.
4.  This is the volume of blood ejected from the left ventricle into the aorta each minute.
A.
B.
C.
D.
E.
5.  In a fetus, this structure temporarily shunts blood from the pulmonary trunk into the aorta.
A.
B.
C.
D.
E.
6.  In this disorder the aortic valve is narrowed.
A.
B.
C.
D.
E.
7.  This term refers to the period of time during a cardiac cycle when contraction occurs and blood pressure rises.
A.
B.
C.
D.
E.
8. 
In the diagram, all of the following carry oxygenated blood.
A.
B.
C.
D.
E.
9.  This is the layer that protects the heart.
A.
B.
C.
D.
E.
10.  Which layer consists of cardiac muscle tissue?
A.
B.
C.
D.
E.
11.  From the left ventricle, where does blood pass?
A.
B.
C.
D.
E.
12.  Which of the below factors would increase stroke volume?
A.
B.
C.
D.
E.
13.  Which of the below structures prevents blood from flowing back from the lungs?
A.
B.
C.
D.
E.
14.  This is a network of specialised cardiac muscle fibres that provide a path for each cycle of cardiac excitation to progress through the heart.
A.
B.
C.
D.
E.
15.  Through which structure does blood pass from the right atrium to the right ventricle?
A.
B.
C.
D.
E.
16. 
In the diagram, where is the left auricle of left atrium?
A.
B.
C.
D.
E.
17.  This part of the brain regulates heart rate.
A.
B.
C.
D.
E.
18.  Which of the following consists of inelastic dense irregular connective tissue?
A.
B.
C.
D.
E.
19.  To the which side of the body is the apex of heart pointed?
A.
B.
C.
D.
E.
20.  These extend into the auricle.
A.
B.
C.
D.
E.
21.  The second heart sound represents which of the below events?
A.
B.
C.
D.
E.
22.  What types of tissue comprises the vavles of the heart?
A.
B.
C.
D.
E.
23.  This vessel distributes oxygenated blood to the myocardium.
A.
B.
C.
D.
E.
24.  By comparison, cardiac muscle cells have _____________________ contraction plateau time than skeletal muscle cells.
A.
B.
C.
25. 
Which of above represents the formation of the primitive heart tube?
A.
B.
C.
D.
E.
26. 
In the diagram, where is the trabeculae carnae?
A.
B.
C.
D.
E.
27.  Stimulation of this nerve reduces heart rate.
A.
B.
C.
D.
E.
28. 
In the diagram, this supplies the walls of the ventricles with oxygenated blood.
A.
B.
C.
D.
E.
29.  As each atrium contracts where does blood move?
A.
B.
C.
D.
E.
30. 
In the diagram, where is the posterior interventricular branch?
A.
B.
C.
D.
E.
31.  This part of the heart can initiate a contraction and can set a constant heart rate of about 100 beats per minute.
A.
B.
C.
D.
E.
32.  This electrical event triggers contraction of the atria.
A.
B.
C.
D.
E.
33. 
Which of the following represents formation of the endocardial tubes?
A.
B.
C.
D.
E.
34.  Which of these periods represents greatest cardiac output?
A.
B.
C.
D.
E.
35.  This is the mass of tissue from the sternum to the vertebral column between the lungs.
A.
B.
C.
D.
E.
36.  This marks the boundarybetween the ventricles.
A.
B.
C.
D.
E.
37. 
In the diagram, where is hte marginal branch?
A.
B.
C.
D.
E.
38. 
Where in the figure does depolarization events occur?
A.
B.
C.
D.
E.
39.  This electrical event represents repolarization of the ventricle.
A.
B.
C.
D.
E.
40. 
In the diagram, these contain coronary blood vessels and a variable amount of fat.
A.
B.
C.
D.
E.
41.  Which of the below reduces heart rate?
A.
B.
C.
D.
E.
42.  As each ventricle contracts where does blood move?
A.
B.
C.
D.
E.
43.  This heart structure carries deoxygenated blood.
A.
B.
C.
D.
E.
44. 
Which of above represents coarctation of the aorta?
A.
B.
C.
D.
E.
45. 
In the diagram, where is the atrioventricular valve?
A.
B.
C.
D.
E.
46. 
In the diagram, where does the blood pass from the right atrium into the right ventricle?
A.
B.
C.
D.
E.
47. 
In the diagram, where is the semilunar valve?
A.
B.
C.
D.
E.
48. 
Which layer of the pericardium consists of dense irregular connective tissue?
A.
B.
C.
D.
E.
49. 
What is happening at #2?
A.
B.
C.
D.
E.
50.  This is used to reduce the friction between membranes of the heart.
A.
B.
C.
D.
E.
51.  Which of the following contains the largest amount of mitochondria?
A.
B.
C.
D.
E.
52.  This is used to increase the capacity of the atrium.
A.
B.
C.
D.
E.
53. 
This is comprised of a thin layer of endothelium overlying a thin layer of connective tissue.
A.
B.
C.
D.
E.
54. 
This portion of the heart wall is responsible for the pumping action.
A.
B.
C.
D.
E.
55. 
In the diagram, where is the ascending aorta?
A.
B.
C.
D.
E.
56. 
In the diagram, where is the coronary sulcus?
A.
B.
C.
D.
E.
57. 
Which of above represents an atrial septal defect?
A.
B.
C.
D.
E.
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