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Multiple Choice Quiz
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1

The three major types of blood vessels are _______.
A)cardiac, smooth, and striated
B)arteries, capillaries, and veins
C)afferent, efferent, and divergent
D)diastolic, systolic, and peristaltic
2

The vessel that lies deepest in the body, with the thickest wall and carrying blood under greatest pressure is the _______.
A)artery
B)vein
C)capillary
D)pulmonary
3

An artery can expand to accommodate the sudden increase in blood volume after each heartbeat.
A)True
B)False
4

Small arteries are called _______.
A)arteriettes
B)venules
C)capillaries
D)pulmonary arteries
E)arterioles
5

Whether you blush or turn pale is determined by dilation or constriction of the _____.
A)valves in the veins
B)venules
C)capillaries
D)major arteries
E)arterioles
6

An exchange of nutrients and wastes takes place across ________ walls.
A)artery
B)vein
C)capillary
D)heart
7

All of the capillaries in the body are open to blood flow all of the time.
A)True
B)False
8

Valves allow blood to flow _______.
A)away from the heart and limit high blood pressure in tissues
B)to those capillary beds that need the blood at that moment
C)toward the heart in veins that lack significant blood pressure
D)to the lungs when the blood lacks enough oxygen
E)from the liver when the intestine lacks nutrient molecules and the liver must deliver glucose, stored as glycogen, to the tissues
9

Valves prevent the backward flow of blood when closed.
A)True
B)False
10

The heart lies within the pericardium, a membranous sac that secretes a small quantity of ________.
A)blood
B)lubricating liquid
C)glucose
11

The heart contains chambers called the ______.
A)atria and ventricles
B)septa
C)AV nodes
D)lunar valves
12

The valves that lie between the atria and the ventricles are called the ________ valves.
A)atrioventricular
B)varicose
C)semilunar
D)lunar
13

The atrioventricular valves are supported by strong fibrous strings called ________.
A)AV nodes
B)chordae tendineae
C)cardiac fibers
D)myocardium
14

The ________ valves resemble half moons.
A)atrioventricular
B)varicose
C)semilunar
D)lunar
15

When the heart beats, the familiar lub-dup sound occurs as the valves of the heart _____.
A)open
B)close
C)expand
D)contract
16

A heart murmur is caused by ______.
A)smoking which weakens the action of the valve
B)ineffective valves allowing blood to leak back through the valve
C)stress from higher blood pressure
D)ineffective signals from the AV node
17

Nodal tissue has ________ characteristics.
A)muscular and nervous
B)muscular and connective
C)connective and nervous
D)sensory and muscular
18

The SA node is found in ________.
A)the base of the right atrium
B)the upper wall of the right atrium
C)each valve unit
D)the tip of the heart
19

The SA node ________.
A)initiates the heartbeat
B)regulates the action of the heart valves
C)signals the ventricles to relax
D)signals the ventricles to contract
20

The AV node ________.
A)initiates the heartbeat
B)regulates the action of the heart valves
C)signals the ventricles to relax
D)signals the ventricles to contract
21

The SA node is called the ________.
A)master regulator
B)diastolic initiator
C)pacemaker
D)systolic suppressor
22

Blood pressure is the pressure of blood against ________.
A)a stethoscope
B)the skin of the upper arm
C)the capillaries of the lung
D)the wall of a blood vessel
23

The highest arterial pressure is called _______.
A)diastolic pressure
B)systolic pressure
C)hypotension
D)hypertension
24

Diastolic pressure occurs while the heart ventricles are _______.
A)relaxing
B)contracting
C)motionless
25

The greater the number of blood vessels dilated, the ________ .
A)higher the blood pressure
B)lower the blood pressure
C)faster the heartbeat
D)slower the heartbeat
26

Blood pressure is lower in the arteries than in the arterioles.
A)True
B)False
27

There is a sharp drop in blood pressure when the arterioles reach the capillaries.
A)True
B)False
28

Blood pressure alone accounts for the movement of blood through the veins.
A)True
B)False
29

The cardiovascular system consists of _______ circuits.
A)pulmonary and systemic
B)arterial and venous
C)renal and hepatic
D)cardiac and cerebral
30

The chamber of the heart that receives oxygen-rich blood from the pulmonary veins is the ______.
A)right atrium
B)left atrium
C)right ventricle
D)left ventricle
31

The pulmonary trunk divides into the ________.
A)pulmonary arteries
B)pulmonary veins
C)venae cavae
D)dorsal aorta
32

The ________ and ________ serve as the major vessels for blood in the systemic circuit.
A)aorta and pulmonary artery
B)pulmonary artery and venae cavae
C)venae cavae and femoral artery
D)aorta and venae cavae
33

The inferior vena cava collects blood from the head, the chest, and the arms.
A)True
B)False
34

In the systemic circuit, like the pulmonary system, arteries contain deoxygenated blood.
A)True
B)False
35

The _______ arteries are extremely important because they serve the heart muscle itself.
A)cardiac
B)coronary
C)pulmonary
D)pericardial
36

The coronary arteries are the first branch off the ________.
A)pericardium
B)vena cava
C)pulmonary arteries
D)aorta
37

At the arterial end of a capillary, blood pressure is lower than the osmotic pressure of the blood.
A)True
B)False
38

Blood brings ______ to cells.
A)amino acids and glucose
B)carbon dioxide
C)wastes
D)ATP
39

Blood removes wastes, such as _______ from the cell.
A)amino acids and glucose
B)carbon dioxide
C)oxygen
D)ATP
40

Osmotic pressure is created by the presence of salts and plasma proteins.
A)True
B)False
41

The blood always has less water concentration compared to tissue fluid because of the presence of ______, whose size prevents passage across the capillary wall.
A)amino acids and glucose
B)carbon dioxide
C)albumin and other plasma proteins
D)white blood cells
42

______________ in the blood help(s) guard the body against invasion by microbes.
A)Red blood cells
B)White blood cells
C)Platelets
D)Albumin
43

The main mechanism to prevent loss of blood is ________.
A)the hemoglobin in red blood cells forms a network
B)white blood cells fuse together
C)platelets participate in clotting
D)albumin dries and hardens
44

If blood is transferred to a test tube and is prevented from clotting, it separates into ___.
A)formed elements and plasma
B)granular leukocytes and agranular leukocytes
C)red blood cells and white blood cells
D)inorganic and organic substances
45

The plasma protein ________ transports bilirubin.
A)fibrinogen
B)prothrombin
C)hemoglobin
D)albumin
E)globulin
46

The lipoproteins that transport cholesterol are a type of protein called _________.
A)fibrinogens
B)prothrombins
C)hemoglobins
D)albumins
E)globulins
47

The plasma protein ________ is necessary to blood clotting.
A)fibrinogen
B)globulin
C)hemoglobin
D)albumin
48

The hormone _________ produced in the kidney stimulates the maturation of more red blood cells.
A)fibrinogen
B)erythropoietin
C)cortisone
D)leukoactin
49

Stem cells __________.
A)initiate the rate of heartbeat
B)initiate the formation of blood clots
C)continuously divide and produce cells that differentiate into blood cells
D)spread in the bloodstream to all parts of the body to repair any damaged tissues
50

Human red blood cells lack ________.
A)hemoglobin
B)iron
C)metabolism
D)a nucleus
51

Red blood cells are destroyed chiefly in the ______.
A)liver and spleen
B)heart and lungs
C)bone marrow
D)kidney
52

Forms of white blood cells include _________.
A)neutrophils
B)macrophages
C)monocytes
D)lymphocytes
E)All of the above are varieties of white blood cells.
53

________ are the most abundant of the white blood cells that function to phagocytize bacteria.
A)Neutrophils
B)Macrophages
C)Monocytes
D)Lymphocytes
54

The largest of the white blood cells are the _________.
A)neutrophils
B)monocytes
C)macrophages
D)lymphocytes
55

Macrophages phagocytize microbes and stimulate other white blood cells to defend the body.
A)True
B)False
56

Neutrophils are unable to phagocytize and digest bacteria.
A)True
B)False
57

Causes of anemia include ___________.
A)insufficient number of red blood cells
B)not enough hemoglobin per red blood cell
C)a lack of iron in the diet
D)All of the above can cause anemia.
58

__________ is a form of cancer characterized by uncontrolled production of abnormal white blood cells.
A)Leukemia
B)Anemia
C)Artherosclerosis
D)Hypertension
E)Pulmonary embolism
59

___________ develop(s) when valves become weak and ineffective due to the backward pressure of blood.
A)Hemorrhaging
B)Varicose veins
C)Atherosclerosis
D)Hypertension
E)Pulmonary embolism
60

__________ occurs when a blood clot lodges in a lung blood vessel and can cause death.
A)Hemorrhaging
B)Varicose veins
C)Artherosclerosis
D)Stroke
E)Pulmonary embolism







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