Anatomy And Physiology Questions - The Cardiovascular System: The Heart

57 Questions  I  By Hermine0817
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.  In the diagram, where does the blood pass from the right atrium into the right ventricle?
A.
B.
C.
D.
E.
2.  By comparison, cardiac muscle cells have _____________________ contraction plateau time than skeletal muscle cells.
A.
B.
C.
3.  In the diagram, where is the semilunar valve?
A.
B.
C.
D.
E.
4.  This marks the boundarybetween the ventricles.
A.
B.
C.
D.
E.
5.  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.
6.  Which of the below reduces heart rate?
A.
B.
C.
D.
E.
7.  Which of the below structures prevents blood from flowing back from the lungs?
A.
B.
C.
D.
E.
8.  This electrical event represents repolarization of the ventricle.
A.
B.
C.
D.
E.
9.  This is the volume of blood ejected from the left ventricle into the aorta each minute.
A.
B.
C.
D.
E.
10.  Which of these periods represents greatest cardiac output?
A.
B.
C.
D.
E.
11.  Cardiac muscle fibres electrically connect to neighbouring fibres by
A.
B.
C.
D.
E.
12.  Which of the following contains the largest amount of mitochondria?
A.
B.
C.
D.
E.
13.  In the diagram, where is the trabeculae carnae?
A.
B.
C.
D.
E.
14.  This is the mass of tissue from the sternum to the vertebral column between the lungs.
A.
B.
C.
D.
E.
15.  To the which side of the body is the apex of heart pointed?
A.
B.
C.
D.
E.
16.  This vessel distributes oxygenated blood to the myocardium.
A.
B.
C.
D.
E.
17.  Which of the following consists of inelastic dense irregular connective tissue?
A.
B.
C.
D.
E.
18.  Stimulation of this nerve reduces heart rate.
A.
B.
C.
D.
E.
19.  Which of above represents the formation of the primitive heart tube?
A.
B.
C.
D.
E.
20.  Where in the figure does depolarization events occur?
A.
B.
C.
D.
E.
21.  As each ventricle contracts where does blood move?
A.
B.
C.
D.
E.
22.  Which of above represents an atrial septal defect?
A.
B.
C.
D.
E.
23.  What is happening at #2?
A.
B.
C.
D.
E.
24.  In the diagram, these contain coronary blood vessels and a variable amount of fat.
A.
B.
C.
D.
E.
25.  Which layer consists of cardiac muscle tissue?
A.
B.
C.
D.
E.
26.  In the diagram, where is the atrioventricular valve?
A.
B.
C.
D.
E.
27.  This consists of mesothelium and connective tissue.
A.
B.
C.
D.
E.
28.  In a fetus, this structure temporarily shunts blood from the pulmonary trunk into the aorta.
A.
B.
C.
D.
E.
29.  These extend into the auricle.
A.
B.
C.
D.
E.
30.  As each atrium contracts where does blood move?
A.
B.
C.
D.
E.
31.  In this disorder the aortic valve is narrowed.
A.
B.
C.
D.
E.
32.  Which of above represents coarctation of the aorta?
A.
B.
C.
D.
E.
33.  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.
34.  Which of the following represents formation of the endocardial tubes?
A.
B.
C.
D.
E.
35.  In the diagram, where is the left auricle of left atrium?
A.
B.
C.
D.
E.
36.  In the diagram, where is hte marginal branch?
A.
B.
C.
D.
E.
37.  In the diagram, this supplies the walls of the ventricles with oxygenated blood.
A.
B.
C.
D.
E.
38.  In the diagram, where is the ascending aorta?
A.
B.
C.
D.
E.
39.  This is comprised of a thin layer of endothelium overlying a thin layer of connective tissue.
A.
B.
C.
D.
E.
40.  In the diagram, where is the coronary sulcus?
A.
B.
C.
D.
E.
41.  Which of the below factors would increase stroke volume?
A.
B.
C.
D.
E.
42.  In the diagram, all of the following carry oxygenated blood.
A.
B.
C.
D.
E.
43.  What types of tissue comprises the vavles of the heart?
A.
B.
C.
D.
E.
44.  This is used to reduce the friction between membranes of the heart.
A.
B.
C.
D.
E.
45.  This is the correct sequence of structures that allows the normal sequence of excitation to progress through the heart.
A.
B.
C.
D.
E.
46.  This part of the brain regulates heart rate.
A.
B.
C.
D.
E.
47.  This heart structure carries deoxygenated blood.
A.
B.
C.
D.
E.
48.  This electrical event triggers contraction of the atria.
A.
B.
C.
D.
E.
49.  The second heart sound represents which of the below events?
A.
B.
C.
D.
E.
50.  This term refers to the period of time during a cardiac cycle when contraction occurs and blood pressure rises.
A.
B.
C.
D.
E.
51.  This portion of the heart wall is responsible for the pumping action.
A.
B.
C.
D.
E.
52.  Through which structure does blood pass from the right atrium to the right ventricle?
A.
B.
C.
D.
E.
53.  In the diagram, where is the posterior interventricular branch?
A.
B.
C.
D.
E.
54.  Which layer of the pericardium consists of dense irregular connective tissue?
A.
B.
C.
D.
E.
55.  From the left ventricle, where does blood pass?
A.
B.
C.
D.
E.
56.  This is used to increase the capacity of the atrium.
A.
B.
C.
D.
E.
57.  This is the layer that protects the heart.
A.
B.
C.
D.
E.
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