39 the cardiac muscle is also called a endocardium b

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39.The cardiac muscle is also called:a)endocardiumb)myocardiumc)epicardiumd)pericardium
40.Which chamber receives the blood returning from the body?
41.Which valve divides the left atria from the left ventricle?
b)tricuspid valvec)aortic valved)pulmonary valve42.Arteries that supply the heart with oxygen and nutrients:
43.Who collects the venous drainage and empties blood into the right atrium?a)great cardiac veinb)left marginal veinc)coronary sinusd)posterior interventricular vein
Place the steps in order to describe the process of the cardiac conduction system:44.___ First stepa) Purkinje fibers45.___ Second stepb) AV node46.___ Third stepc) SA node47.___ Fourth stepd) Bundle of HisTRUE OR FALSE.48.___ Systole is when the heart contracts49.___ Nodal rhythm is when the heartbeat is triggered by the SA node50.___ Total heart block is when there is damage to the AV node51.___ Ventricular fibrillation leads to cardiac arrest if not corrected52.___ When the cells needs to repolarize it opens H+ channels53.___ P wave stands for the ventricular depolarization in the ECG54.The cardiac output is:
55.How can we measure a person’s heart rate?
56.What is the heart rate of a patient if she has 14 beats in 15 seconds?
57.The answer from question 3) is considered:
a)Tachycardiab)Bradycardiac)Normal heart rated)Bronchodilation
58.The cardiac centers of the central nervous system are located at:
59.Which fibers stimulate the heart by accelerating both contraction and relaxation with therelease of norepinephrine?
60.In excessively high heart rates:
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Term
Spring
Professor
Royster
Tags
foreign antigen, antigen C, C First step

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