Question 1

Which blood vessels will have walls only one cell thick?

Accepted Answer

A)  capillaries 
B)  venules 
C)  veins 
D)  arterioles 
E)  arteries 
A)  capillaries 
B)  venules 
C)  veins 
D)  arterioles 
E)  arteries

Question 2

Only blood pressure controls movement of fluid through the capillary wall into the tissue. Therefore, people with high blood pressure often have swelling issues.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is true about capillaries?

Accepted Answer

A)  Capillaries are extremely narrow. 
B)  Capillaries join arteries to arterioles. 
C)  Capillaries walls have three layers. 
D)  Capillaries are present in only a limited number of internal organs. 
E)  Capillaries work individually to carry out their function. 
A)  Capillaries are extremely narrow. 
B)  Capillaries join arteries to arterioles. 
C)  Capillaries walls have three layers. 
D)  Capillaries are present in only a limited number of internal organs. 
E)  Capillaries work individually to carry out their function.

Question 4

Why is it advantageous to have blood move slowly in the capillaries?

Accepted Answer

A)  It will not cause damage to the valves. 
B)  It maintains the high pressure in the capillaries. 
C)  It provides time for substances to be exchanged between blood and tissue fluids. 
D)  It creates a greater osmotic pressure for cells. 
E)  It is the major way to control blood pressure. 
A)  It will not cause damage to the valves. 
B)  It maintains the high pressure in the capillaries. 
C)  It provides time for substances to be exchanged between blood and tissue fluids. 
D)  It creates a greater osmotic pressure for cells. 
E)  It is the major way to control blood pressure.

Question 5

The "lub" heart sound is due to the

Accepted Answer

A)  onward rush of blood to the heart. 
B)  contraction of aortic muscle tissue. 
C)  closing of the semilunar valves. 
D)  closing of the atrioventricular valves. 
E)  the recoil of the aorta following the ventricle contraction. 
A)  onward rush of blood to the heart. 
B)  contraction of aortic muscle tissue. 
C)  closing of the semilunar valves. 
D)  closing of the atrioventricular valves. 
E)  the recoil of the aorta following the ventricle contraction.

Question 6

Diastole is contraction of the heart and systole is relaxation.

Accepted Answer

A) True 
 B)False

Question 7

The major portion of the heart is the myocardium, made up mainly of cardiac muscle.

Accepted Answer

A) True 
 B)False

Question 8

Aged red blood cells are destroyed in the

Accepted Answer

A)  red bone marrow. 
B)  lungs. 
C)  lymph nodes. 
D)  spleen and liver. 
E)  capillaries. 
A)  red bone marrow. 
B)  lungs. 
C)  lymph nodes. 
D)  spleen and liver. 
E)  capillaries.

Question 9

Blood traveling from the intestines to the liver travels through the

Accepted Answer

A)  pulmonary vein. 
B)  inferior vena cava. 
C)  superior vena cava. 
D)  coronary vessels. 
E)  hepatic portal vein. 
A)  pulmonary vein. 
B)  inferior vena cava. 
C)  superior vena cava. 
D)  coronary vessels. 
E)  hepatic portal vein.

Question 10

Which specific component in hemoglobin combines with oxygen?

Accepted Answer

A)  heme 
B)  globin 
C)  iron in the heme 
D)  iron in the globin 
E)  the polypeptide 
A)  heme 
B)  globin 
C)  iron in the heme 
D)  iron in the globin 
E)  the polypeptide

Question 11

The element in your blood necessary for the clotting process is

Accepted Answer

A)  calcium. 
B)  phosphorus. 
C)  chlorine. 
D)  iron. 
E)  sodium. 
A)  calcium. 
B)  phosphorus. 
C)  chlorine. 
D)  iron. 
E)  sodium.

Question 12

Which structure(s) would be subject to the lowest blood pressure?

Accepted Answer

A)  vena cava 
B)  aorta 
C)  atrioventricular valve 
D)  pulmonary arteries 
E)  semilunar valve 
A)  vena cava 
B)  aorta 
C)  atrioventricular valve 
D)  pulmonary arteries 
E)  semilunar valve

Question 13

The long insoluble threads of a blood clot originate from

Accepted Answer

A)  fibrinogen. 
B)  thrombin. 
C)  collagen. 
D)  prothrombin. 
E)  platelets. 
A)  fibrinogen. 
B)  thrombin. 
C)  collagen. 
D)  prothrombin. 
E)  platelets.

Question 14

Neutrophils are agranular leukocytes.

Accepted Answer

A) True 
 B)False

Question 15

Platelets

Accepted Answer

A)  phagocytize bacteria. 
B)  are responsible for blood type. 
C)  initiate clotting. 
D)  transport oxygen in the blood. 
E)  are responsible for the buildup of plaques on artery walls. 
A)  phagocytize bacteria. 
B)  are responsible for blood type. 
C)  initiate clotting. 
D)  transport oxygen in the blood. 
E)  are responsible for the buildup of plaques on artery walls.

Question 16

Before major surgery, a patient is often asked if they have been taking large amounts of aspirin, and if so, they may have to postpone surgery and go without aspirin for some days. What is the reason for this?

Accepted Answer

A)  Aspirin interferes with the action of prothrombin activator. 
B)  Aspirin causes the blood to be thinner or less viscous. 
C)  Aspirin decreases red blood cell production. 
D)  Aspirin reduces the stickiness of platelets and reduces the ability to clot. 
E)  Aspirin eliminates pain and some pain is necessary for healing. 
A)  Aspirin interferes with the action of prothrombin activator. 
B)  Aspirin causes the blood to be thinner or less viscous. 
C)  Aspirin decreases red blood cell production. 
D)  Aspirin reduces the stickiness of platelets and reduces the ability to clot. 
E)  Aspirin eliminates pain and some pain is necessary for healing.

Question 17

Which statement(s) is/are correct? Check all that apply.

Accepted Answer

A)  Arteries have a thick muscular layer. 
B)  Veins can control blood pressure. 
C)  Capillaries are the site of oxygen and nutrient exchange. 
D)  Veins have valves to assist with one-way blood flow. 
E)  Capillaries contain most of the blood volume. 
A)  Arteries have a thick muscular layer. 
B)  Veins can control blood pressure. 
C)  Capillaries are the site of oxygen and nutrient exchange. 
D)  Veins have valves to assist with one-way blood flow. 
E)  Capillaries contain most of the blood volume.

Question 18

A heart murmur that sounds like "lub-dup-shush" would indicate which of the following?

Accepted Answer

A)  atrioventricular valve is not closing properly 
B)  semilunar valve is not closing properly 
C)  high blood pressure in the atria 
D)  ventricles are not contracting properly 
E)  low blood pressure in the ventricles 
A)  atrioventricular valve is not closing properly 
B)  semilunar valve is not closing properly 
C)  high blood pressure in the atria 
D)  ventricles are not contracting properly 
E)  low blood pressure in the ventricles

Question 19

What is the correct sequence in which a drop of blood returning from the body encounters the heart chambers?

Accepted Answer

A)  left atrium → left ventricle → right atrium → right ventricle 
B)  left ventricle → left atrium → right ventricle → right atrium 
C)  right atrium → left atrium → left ventricle → right ventricle 
D)  right atrium → left ventricle → left atrium → right ventricle 
E)  right atrium → right ventricle → left atrium → left ventricle 
A)  left atrium → left ventricle → right atrium → right ventricle 
B)  left ventricle → left atrium → right ventricle → right atrium 
C)  right atrium → left atrium → left ventricle → right ventricle 
D)  right atrium → left ventricle → left atrium → right ventricle 
E)  right atrium → right ventricle → left atrium → left ventricle

Question 20

What is the correct sequence in which a drop of blood returning from the body encounters the heart valves?

Accepted Answer

A)  right atrioventricular valve → aortic semilunar valve → left atrioventricular valve → pulmonary semilunar valve 
B)  right atrioventricular valve → pulmonary semilunar valve → left atrioventricular valve → aortic semilunar valve 
C)  left atrioventricular valve → pulmonary semilunar valve → right atrioventricular valve → aortic semilunar valve 
D)  pulmonary semilunar valve → left atrioventricular valve → aortic semilunar valve → right atrioventricular valve 
E)  left atrioventricular valve → aortic semilunar valve → right atrioventricular valve → pulmonary semilunar valve 
A)  right atrioventricular valve → aortic semilunar valve → left atrioventricular valve → pulmonary semilunar valve 
B)  right atrioventricular valve → pulmonary semilunar valve → left atrioventricular valve → aortic semilunar valve 
C)  left atrioventricular valve → pulmonary semilunar valve → right atrioventricular valve → aortic semilunar valve 
D)  pulmonary semilunar valve → left atrioventricular valve → aortic semilunar valve → right atrioventricular valve 
E)  left atrioventricular valve → aortic semilunar valve → right atrioventricular valve → pulmonary semilunar valve

Exam 12: Cardiovascular System

Which blood vessels will have walls only one cell thick?

Only blood pressure controls movement of fluid through the capillary wall into the tissue. Therefore, people with high blood pressure often have swelling issues.

Which of the following is true about capillaries?

Why is it advantageous to have blood move slowly in the capillaries?

The "lub" heart sound is due to the

Diastole is contraction of the heart and systole is relaxation.

The major portion of the heart is the myocardium, made up mainly of cardiac muscle.

Aged red blood cells are destroyed in the

Blood traveling from the intestines to the liver travels through the

Which specific component in hemoglobin combines with oxygen?

The element in your blood necessary for the clotting process is

Which structure(s) would be subject to the lowest blood pressure?

The long insoluble threads of a blood clot originate from

Neutrophils are agranular leukocytes.

Platelets

Before major surgery, a patient is often asked if they have been taking large amounts of aspirin, and if so, they may have to postpone surgery and go without aspirin for some days. What is the reason for this?

Which statement(s) is/are correct? Check all that apply.

A heart murmur that sounds like "lub-dup-shush" would indicate which of the following?

What is the correct sequence in which a drop of blood returning from the body encounters the heart chambers?

What is the correct sequence in which a drop of blood returning from the body encounters the heart valves?

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