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Multiple Choice Quiz
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Please answer all questions

1
Where is the heart specifically located?
A)thoracic cavity
B)mediastinum
C)pleural cavity
D)ventral cavity
2
The apical heartbeat in an adult is best heard at the level of the _____.
A)diaphragm
B)first rib
C)fifth intercostal space
D)seventh intercostal space
3
The membrane closest to the heart muscle is the _____.
A)fibrous pericardium
B)visceral pericardium
C)parietal pericardium
D)peritoneum
4
What is a prominent symptom of pericarditis?
A)increase in blood pressure
B)an irregular heart beat
C)severe chest pain
D)high fever
5
Which part of the heart is usually damaged by scarlet fever or syphilis?
A)pericardium
B)myocardium
C)epicardium
D)endocardium
6
The atrioventricular sulcus separates the _____.
A)atria and ventricle areas
B)right from left ventricle
C)right atrium from right ventricle
D)right from left atrium
7
Blood from the cardiac muscle itself drains into the _____.
A)superior vena cava
B)left ventricles
C)right ventricle
D)coronary sinus
8
The superior vena cava enters the _____ of the heart.
A)right ventricle
B)right atrium
C)left atrium
D)left ventricle
9
Mitral valve prolapse is a condition that causes blood to back flow into the _____.
A)right atrium
B)right ventricle
C)left atrium
D)left ventricle
10
The pulmonary semilunar valve prevents back flow of blood into the _____.
A)right atrium
B)left atrium
C)right ventricle
D)left ventricle
11
Which of the following contains blood with a relatively high oxygen content?
A)left ventricle
B)right ventricle
C)right atrium
D)superior vena cava
12
Which of the following contains blood with a relatively low oxygen content?
A)left ventricle
B)aorta
C)pulmonary vein
D)pulmonary artery
13
Which of the following does not belong with the others?
A)right coronary artery
B)left coronary artery
C)circumflex artery
D)anterior interventricular artery
14
Which term indicates that tissue in the heart has died?
A)coronary thrombosis
B)angina pectoris
C)ischemia
D)infarction
15
Which term refers to the severe chest pain evident during an attack of myocardial ischemia?
A)hypoxia
B)infarction
C)angina
D)diaphoresis
16
When does blood flow into the coronary arteries?
A)during ventricular contraction
B)during atrial contraction
C)when the heart is at rest
D)during ventricular relaxation
17
About _____% of the atrial blood flows into the ventricles before the atria contract.
A)10
B)70
C)50
D)30
18
The atria will empty during ______.
A)atrial diastole
B)atrial systole
C)ventricular diastole
D)ventricular systole
19
The first heart sound results when the _____.
A)ventricle contracts
B)semilunar valves close
C)A-V valves close
D)atria contract
20
A stethoscope placed at the tip of the sternum will best be able to detect which sound?
A)tricuspid valve
B)bicuspid valve
C)aortic
D)pulmonary
21
Which fiber system is the first to depolarize in a cardiac cycle?
A)atrioventricular node
B)sinoatrial node
C)bundle of His
D)Purkinje fibers
22
Which chamber of the heart contains the pacemaker?
A)right ventricle
B)right atrium
C)left ventricle
D)left atrium
23
The _____ allows the atria to communicate with the ventricles.
A)SA node
B)A-V bundle
C)A-V node
D)Purkinje fibers
24
Which part of the heart is the last to become excited during a cardiac cycle?
A)apex
B)atria
C)ventricular septum
D)superior ventricular region
25
Which area allows the atria to completely empty as the ventricles fill with blood?
A)A-V node
B)A-V bundle
C)S-A node
D)Purkinje fibers
26
The cardiac reflex control centers are located within the _____.
A)hypothalamus
B)medulla oblongata
C)aorta
D)heart
27
The pressoreceptors located in the _____ respond to stretching by slowing the rate of the heart.
A)medulla
B)aortic sinus
C)jugular vein
D)heart
28
The purpose of the medullary cardiac centers is to _____.
A)increase heart rate
B)decrease heart rate
C)maintain heart rate
D)maintain blood pressure
29
The increase in heart rate caused by seeing a wild dog run after you is probably the result of the _____.
A)medullary accelerator center
B)hypothalamus
C)sympathetic nerves
D)increase in blood pressure
30
Where does the repolarization of the atria occur?
A)P wave
B)QRS complex
C)T wave
D)U wave
31
The time taken for an impulse to travel from the S-A to the A-V node is evidenced in the _____.
A)QRS complex
B)S-T interval
C)P-Q interval
D)QRS-T interval
32
The most serious and life threatening arrhythmia of the heart is _____.
A)tachycardia
B)bradycardia
C)flutter
D)fibrillation
33
An ectopic pacemaker causes the arrhythmia called a _____.
A)flutter
B)premature beat
C)fibrillation
D)bradycardia event
34
The _____ layer of an artery contains the greatest amount of smooth muscle.
A)endothelium
B)tunica intima
C)tunica media
D)tunica adventitia
35
Which of the following does not have the ability to contract?
A)veins
B)arteries
C)venules
D)capillaries
36
Which capillary beds have the greatest permeability?
A)liver
B)smooth muscle
C)pancreas
D)heart
37
Which area contains the tightest capillary endothelial junctions?
A)spleen
B)skeletal muscle
C)brain
D)thyroid gland
38
Which of these areas totally lack capillaries?
A)spinal cord
B)cartilage
C)dermis
D)gall bladder
39
Which factor assists venous return to the heart?
A)valves
B)inspiration
C)skeletal muscle
D)all of these
40
The highest pressure exerted by the heart is called the _____.
A)systolic pressure
B)diastolic pressure
C)pulse pressure
D)mean arterial pressure
41
The condition called _____ is characterized by some defect or weakness in a vessel wall.
A)phlebitis
B)aneurysm
C)arteriosclerosis
D)atherosclerosis
42
The obstructive accumulation of cholesterol in a vessel is the result of _____.
A)arteriosclerosis
B)phlebitis
C)atherosclerosis
D)plaque
43
The average blood pressure in an artery is the _____.
A)diastolic
B)systolic
C)120/80 mmHg
D)mean arterial
44
The amount of blood ejected by the left ventricle each minute is calculated from which formula?
A)heart rate + stroke volume
B)heart rate X stroke volume
C)heart rate divided by stroke volume
D)heart rate - stroke volume
45
The three factors that contribute to arterial blood pressure are cardiac output, blood volume and _____.
A)viscosity
B)resistance
C)valves
D)heart rate
46
The central venous pressure is the pressure in the _____.
A)superior vena cava
B)right atrium
C)left atrium
D)jugular veins
47
Which are the first vessels to branch off the aorta?
A)right subclavian
B)left subclavian
C)brachiocephalic
D)coronary arteries
48
The three arteries that arise from the aortic arch are the left subclavian, left common carotid and _____.
A)right subclavian
B)right common carotid
C)brachiocephalic
D)celiac
49
The left gastric, splenic, and common hepatic arteries come from the _____.
A)superior mesenteric
B)celiac
C)splanchnic
D)inferior mesenteric
50
The diaphragm is supplied by the _____ artery.
A)phrenic
B)suprarenal
C)adrenal
D)gonadal
51
The following vessels will direct blood to the brain except which one?
A)common carotid
B)internal carotid
C)vertebral
D)jugular
52
The brachial artery divides into the radial and _____.
A)axillary
B)ulnar
C)cephalic
D)subclavian
53
The _____ will send blood into the femoral artery.
A)external iliac
B)internal iliac
C)pudendal
D)popliteal
54
The _____ vein represents a functional connection between the superior and inferior vena cavae.
A)thoracic
B)azygos
C)intercostal
D)cephalic
55
The superior mesenteric vein joins the splenic vein to form the _____ vein.
A)hepatic
B)hepatic portal
C)gastric
D)inferior mesenteric
56
The longest vein in the body is the _____.
A)femoral
B)gluteal
C)brachial
D)saphenous
57
In an ECG, where does the depolarization of the atria occur?
A)P wave
B)QRS complex
C)T wave
D)U wave







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