Answers:

1) The space in the middle of the thoracic cavity where the heart resides is the:
a) pericardial cavity
b) pericardium
c) pleural cavity
d) mediastinum
e) dorsal cavity

2) The foramen ovale in the fetal heart is located in the:
a) right atrium
b) left atrium
c) interventricular septum
d) interatrial septum
e) pulmonary trunk

3) Which blood vessel does NOT bring blood directly to the heart:
a) great cardiac vein
b) coronary sinus
c) inferior vena cava
d) superior vena cava

4) If communication between the SA node and the AV node becomes blocked which is most certainly affected:
a) the ventricles will contract at a slower rate
b) afterload will increase
c) the atria will contract at a slower rate
d) stroke volume will increase
e) all of the above

5) If there is a blockage between the AV node and AV bundle, how will this affect the appearance of the ECG:
a) P-R interval would be smaller
b) QRS interval would be longer
c) there would be more P waves than QRS complexes
d) there would be more QRS complexes than P waves
e) the T wave would not be present

6) What effect would compressing the inferior vena cava just below the diaphragm have on cardiac function:
a) stroke volume would decrease
b) cardiac output would decrease
c) sympathetic stimulation of the heart would eventually increase
d) heart rate would eventually increase
e) all of the above

7) A valve damaged by rheumatic fever fails to open completely.  This is called:
a) stenosis
b) heart block
c) ischemia
d) MI
e) fibrillation

8) A patient with CAD (coronary artery disease) is experiencing severe angina and self-administers sublingual nitroglycerin.  This will act as a(n):
a) cardiac beta-blocker
b) coronary vasodilator
c) coronary vasoconstrictor
d) anticoagulant blood-thinner
e) angioplastic agent

9) Blood returning from the lungs enters the heart through the:
a) pulmonary semilunar valve
b) mitral valve
c) right ventricle
d) left atrium
e) vena cava

10) According to Starling's Law of the heart, cardiac output is directly related to:
a) the size of the ventricles
b) the heart rate
c) amount of blood returning to the heart
d) end-systolic volume
e) cardiac reserve

11) The T wave on an ECG represents::
a) ventricular depolarization
b) ventricular repolarization
c) atrial depolarization
d) atrial repolarization
e) ventricular systole

12) Cardiac output is equal to:
a) diastolic BP + 1/3(systolic BP-diastolic BP)
b) HR x SV
c) EDV-ESV
d) EDV-SV x HR
e) HR x BP

13) During ventricular systole:
a) the atria are contracting
b) the AV valves are closed
c) the pressure inside the ventricles is less than in the atria
d) the mitral valve is closed
e) blood is ejected into the atria

14) In general, veins exhibit this characteristic when compared to arteries:
a) are thinner walled
b) have more smooth muscle in the tunica media
c) carry faster moving blood
d) have thicker endothelium
e) are more elastic

15) The blood vessels that play the most important role in the regulation of blood flow to a tissue and blood pressure are the:
a) arterioles
b) capillaries
c) venules
d) arteries
e) veins

16) As blood travels from the aorta to the capillaries:
a) pressure increases
b) viscosity increases
c) resistance increases
d) velocity increases
e) flow increases

17) The internal carotids and the basilar artery are interconnected by an anastomosis call the:
a) brachiocephalic trunk
b) common carotid artery
c) coronary sinus
d) throughway channel
e) circle of Willis

18) A patient with an hypothalamic tumor causes excessive ADH secretion. When her blood pressure is taken which of the following readings would you expect:
a) 95/65
b) 115/80
c) 120/65
d) 165/100

19) The difference between the systolic and diastolic pressures is called the:
a) mean arterial blood pressure
b) blood pressure
c) pulse pressure
d) end-ventricular pressure
e) none of the above

20) Which of the following is NOT a risk factor for developing atherosclerosis:
a) male
b) diabetes
c) smoking
d) high HDL level
e) high dietary fat intake