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Hole's Human Anatomy & Physiology, 9/e

David Shier, Washtenaw Community College
Ricki Lewis, The University at Albany
Jackie Butler, Grayson County Community College

Cardiovascular System

Multiple Choice Quiz

Please answer all questions


1	Which layer of the heart or pericardium serves the dual purpose of lining the pericardium and forming the outermost wall of the heart?
		A)	fibrous pericardium
		B)	parietal pericardium
		C)	visceral pericardium (epicardium)
		D)	myocardium


2	The layer of the heart that forms a smooth, protective lining of the heart chambers and valves is the _______________.
		A)	endocardium
		B)	myocardium
		C)	epicardium
		D)	parietal pericardium


3	The bicuspid valve __________________.
		A)	is located on the left side of the heart
		B)	guards the auricles of the heart
		C)	guards the entrance to the aorta
		D)	guards the entrance to the pulmonary trunk


4	The _____________ has the thickest wall because it pumps blood to the ________________.
		A)	right atrium; systemic circuit
		B)	right ventricle; lungs
		C)	left atrium; lungs
		D)	left ventricle; systemic circuit


5	Freshly oxygenated blood enters the heart through the ______________, and is pumped out the _____________.
		A)	right atrium; aorta
		B)	left atrium; aorta
		C)	right ventricle; pulmonary arteries
		D)	left ventricle; pulmonary arteries


6	Someone suffering a heart attack in his anterior lower right ventricle probably had a blockage in which coronary artery?
		A)	anterior interventricular artery
		B)	circumflex artery
		C)	posterior interventricular artery
		D)	marginal artery


7	When do the A-V valves close during the cardiac cycle?
		A)	when pressure inside the ventricles is at its lowest
		B)	when pressure inside the atria is greater than that inside the ventricles
		C)	when ventricular pressure exceeds that of the atria
		D)	when pressure is greater in the aorta than in the left ventricle


8	How does the impulse to contract slow down slightly before it is transferred into the ventricles?
		A)	It makes a detour and travels to the brain and back.
		B)	There is a parasympathetic brake on the AV node.
		C)	Junctional fibers leading into the AV node have very small diameters.
		D)	The skeleton of the heart prevents the impulse from being transmitted rapidly.


9	What does the electrocardiogram (ECG) QRS wave indicate is happening in the heart?
		A)	The atria are depolarizing.
		B)	The ventricles are depolarizing while the atria repolarize.
		C)	The ventricles are repolarizing.
		D)	The heart is at rest.


10	Which artery supplies blood to the ilium and muscles of the lower back?
		A)	aorta
		B)	common iliac artery
		C)	internal iliac artery
		D)	iliolumbar artery


11	A deep wound to the upper thigh might damage the _____________ artery.
		A)	femoral
		B)	popliteal
		C)	anterior tibial
		D)	peroneal


12	Blood is drained from the face, scalp, and superficial regions of the neck by the _______________.
		A)	carotid arteries
		B)	external jugular veins
		C)	internal jugular veins
		D)	brachiocephalic veins


13	A unique venous system, called the ________________, carries blood directly from the intestines to the liver for processing rather than directly into the inferior vena cava.
		A)	hepatic portal system
		B)	superior mesenteric vein
		C)	saphenous vein
		D)	gonadal vein


14	The inability of the left ventricle to pump blood adequately to the body's cells is indicative of ________________.
		A)	an embolus
		B)	cardiac tamponade
		C)	congestive heart failure
		D)	asystole


15	A condition in which there is a congenital predisposition for a ruptured aorta is _____________.
		A)	a metabolic disorder of fatty acid metabolism
		B)	Marfan syndrome
		C)	Niemann-Pick type C disease
		D)	Coronary artery disease


16	Which membrane is closest to the heart muscle?
		A)	pericardial sac
		B)	fibrous pericardium
		C)	parietal pericardium
		D)	visceral pericardium


17	How many openings are there in the right atrium?
		A)	1
		B)	2
		C)	3
		D)	5


18	The _____ valve lies between the right atrium and right ventricle.
		A)	bicuspid
		B)	aortic semilunar
		C)	pulmonary semilunar
		D)	tricuspid


19	The pulmonary semilunar valve prevents a back-flow of blood into the _____.
		A)	pulmonary artery
		B)	right ventricle
		C)	left ventricle
		D)	right atrium


20	The aortic semilunar valve prevents blood from returning to the _____.
		A)	left ventricle
		B)	aorta
		C)	right ventricle
		D)	left atrium


21	Which structure contains the lowest amount of oxygen?
		A)	pulmonary vein
		B)	aorta
		C)	vena cava
		D)	right ventricle


22	Cardiac output can be determined by the following formula:
		A)	HR - SV
		B)	HR divided by SV
		C)	HR + SV
		D)	HR x SV


23	The first heart sound is caused by closure of the _____ valves.
		A)	pulmonary semilunar
		B)	atrioventricular
		C)	aortic semilunar
		D)	mitral


24	The last in the cardiac conduction sequence is the _____.
		A)	SA node
		B)	AV node
		C)	AV bundle
		D)	Purkinje fibers


25	The electrical initiation of a heartbeat begins in the _____ chamber wall.
		A)	left ventricle
		B)	right ventricle
		C)	right atrium
		D)	left atrium


26	The central cardiac control region is in the _____ of the brain.
		A)	hypothalamus
		B)	medulla oblongata
		C)	cerebellum
		D)	pons


27	The T wave of an electrocardiogram represents which event?
		A)	ventricular depolarization
		B)	atrial repolarization
		C)	ventricular repolarization
		D)	atrial depolarization


28	A heartbeat of less than 60 beats per minute is called _____.
		A)	tachycardia
		B)	bradycardia
		C)	arrhythmia
		D)	fibrillation

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