Choose the best answer.

1			Which vessel supplies blood to both ventricles and the anterior interventricular septum?
			A)	the right coronary artery
			B)	the anterior interventricular branch
			C)	the circumflex branch
			D)	the posterior interventricular branch
2			Blood leaves the right ventricle through which valve?
			A)	right atrioventricular
			B)	aortic
			C)	left atrioventricular
			D)	pulmonary
3			Which vessel carries oxygen poor blood to the lungs from the heart?
			A)	aorta
			B)	inferior vena cava
			C)	pulmonary trunk
			D)	superior vena cava
4			A drop of blood returning to the heart from the little finger would enter the heart through which vessel?
			A)	inferior vena cava
			B)	superior vena cava
			C)	aorta
			D)	coronary sinus
5			Why is the myocardium the thickest in the left ventricle?
			A)	Creates the greatest systolic pressure
			B)	Pumps to the lungs
			C)	Pumps to the heart only
			D)	Creates the lowest diastolic pressure
6			Which vessel collects poorly oxygenated blood that supplied the heart tissue and then empties into the right atrium?
			A)	left coronary artery
			B)	right coronary artery
			C)	coronary sinus
			D)	great coronary vein
7			Which chamber makes up the apex of the heart?
			A)	right atria
			B)	left atria
			C)	right ventricle
			D)	left ventricle
8			What is the nerve that supplies parasympathetic innervation to the heart?
			A)	vagus
			B)	splanchnic nerves
			C)	sympathetic chain
			D)	phrenic nerve
9			Which vessel does NOT return blood to the right atrium?
			A)	superior vena cava
			B)	inferior vena cava
			C)	coronary sinus
			D)	pulmonary veins
10			The vessel that carries blood to the systemic system is the _______________.
			A)	aorta
			B)	pulmonary trunk
			C)	pumonary veins
			D)	coronary sinus
11			The heart's blood supply is normally from how many vessels coming from the aorta?
			A)	1
			B)	2
			C)	3
			D)	4
12			The connections between adjacent cardiac myocytes are called ______________.
			A)	heart tube
			B)	gap junctions
			C)	cardiac nerves
			D)	intercalated discs
13			The valve between the left ventricle and the aorta is the ________________.
			A)	right AV valve
			B)	left AV valve
			C)	aortic valve
			D)	pulmonary valve
14			The opening in the embryo right atrium to left atrium is called the ________________.
			A)	foramen rotundum
			B)	foramen ovale
			C)	truncus arteriosus
			D)	sinus venosus
15			The layer of the heart wall composed of cardiac muscle is called the _________________.
			A)	myocardium
			B)	epicardium
			C)	endocardium
			D)	ventricular septum
16			What is the name of the structure that carries blood in the embryo from the pulmonary trunk to the aorta?
			A)	ductus veinosum
			B)	ligamentum pulmosum
			C)	ductus arteriosus
			D)	foramen ovale
17			The blood circuit that goes to the lungs is called the _________________ circuit.
			A)	hepatic
			B)	pulmonary
			C)	lymphatic
			D)	systemic
18			What is the name of the body cavity that contains the heart?
			A)	axillary
			B)	abdominal
			C)	systemic
			D)	thoracic
19			The distribution of blood by the cardiovascular system is to all of the body except the lungs. What is it called?
			A)	systemic
			B)	lymphatic
			C)	pulmonary
			D)	hepatic
20			What is the name of the area that divides the thoracic cavity into right and left sides and contains the heart and major vessels?
			A)	pericardium
			B)	plural
			C)	mediastinum
			D)	peritoneum
21			The study of the heart is called ______________.
			A)	mycology
			B)	cardiology
			C)	pericardium
			D)	reflexology
22			In its normal position the heart lies with the apex and right side on the ______________________.
			A)	right lung
			B)	liver
			C)	stomach
			D)	diaphragm
23			The chambers of the heart are separated by a meshwork of collagenous and elastic fibers called the _______________.
			A)	fibrous skeleton
			B)	bridge work
			C)	myocardial skeleton
			D)	valvular frame work
24			The left atrioventricular, or mitral valve, normally has _________ cusps.
			A)	1
			B)	2
			C)	3
			D)	4
25			The sinoatrial (SA) node is located in the _______________ of the heart.
			A)	right atrium
			B)	left atrium
			C)	right ventricle
			D)	left ventricle