Question 1

At the arteriole end of the capillary, precapillary sphincters

Accepted Answer

A)  force blood back into arteries. 
B)  control blood flow into capillaries. 
C)  control blood flow into venules. 
D)  connect arterioles to venules. 
E)  force blood back into veins. 
A)  force blood back into arteries. 
B)  control blood flow into capillaries. 
C)  control blood flow into venules. 
D)  connect arterioles to venules. 
E)  force blood back into veins.

Question 2

A pouchlike weak spot in an artery is known as a(n)

Accepted Answer

A)  aneurysm. 
B)  varicosity. 
C)  plaque. 
D)  herniation. 
E)  hemangioma. 
A)  aneurysm. 
B)  varicosity. 
C)  plaque. 
D)  herniation. 
E)  hemangioma.

Question 3

By controlling their musculature, which of the following can vary the resistance to blood flow?

Accepted Answer

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

Question 4

The blood works with the urinary system by

Accepted Answer

A)  carrying wastes for removal. 
B)  carrying nutrients. 
C)  carrying heat produced by muscles. 
D)  carrying carbon dioxide waste. 
E)  carrying hormones. 
A)  carrying wastes for removal. 
B)  carrying nutrients. 
C)  carrying heat produced by muscles. 
D)  carrying carbon dioxide waste. 
E)  carrying hormones.

Question 5

The bicuspid (mitral) valve is located between the

Accepted Answer

A)  left and right atria. 
B)  right atrium and right ventricle. 
C)  left and right ventricles. 
D)  left atrium and left ventricle. 
E)  left ventricle and the aorta. 
A)  left and right atria. 
B)  right atrium and right ventricle. 
C)  left and right ventricles. 
D)  left atrium and left ventricle. 
E)  left ventricle and the aorta.

Question 6

Match between columns
                        Premises: Blood from the upper and lower vena cavae enters the heart via this structure.
Blood is pumped to the majority of the body by this structure.
Blood passes to the lungs from this structure.
Deoxygenated blood exits the heart from this structure.
Oxygenated blood enters the heart via this structure.

Accepted Answer

The Answer of right ventricle. and left ventricle and right is...

Question 7

The thick wall that separates the heart into a left and right half is the

Accepted Answer

A)  septum. 
B)  myocardium. 
C)  pericardium. 
D)  endocardium. 
E)  chordae tendinae. 
A)  septum. 
B)  myocardium. 
C)  pericardium. 
D)  endocardium. 
E)  chordae tendinae.

Question 8

Which of the following has the highest blood pressure?

Accepted Answer

A)  right ventricle 
B)  right atrium 
C)  aorta 
D)  left atrium 
E)  pulmonary circulation 
A)  right ventricle 
B)  right atrium 
C)  aorta 
D)  left atrium 
E)  pulmonary circulation

Question 9

If a physician hears two "lub" sounds instead of one, then which of the following conditions is true?

Accepted Answer

A)  The semilunar valves are not closing simultaneously. 
B)  The atrial blood is flowing backward and causing the extra sound. 
C)  The atrioventricular valves are not closing at the same time. 
D)  The AV and semilunar valves are not closing at the same time. 
E)  No such double sound has ever been heard. 
A)  The semilunar valves are not closing simultaneously. 
B)  The atrial blood is flowing backward and causing the extra sound. 
C)  The atrioventricular valves are not closing at the same time. 
D)  The AV and semilunar valves are not closing at the same time. 
E)  No such double sound has ever been heard.

Question 10

The blood works with the muscular system by

Accepted Answer

A)  destroying toxins. 
B)  sensing movement. 
C)  carrying heat produced by muscles. 
D)  controlling blood pressure. 
E)  carrying nutrients. 
A)  destroying toxins. 
B)  sensing movement. 
C)  carrying heat produced by muscles. 
D)  controlling blood pressure. 
E)  carrying nutrients.

Question 11

Oxygen and carbon dioxide exchange between the circulatory system and tissues occurs at the

Accepted Answer

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

Question 12

The heart damage associated with Lyme disease is

Accepted Answer

A)  rheumatic fever 
B)  hypertension 
C)  endocarditis 
D)  myocarditis 
E)  malignant melanoma 
A)  rheumatic fever 
B)  hypertension 
C)  endocarditis 
D)  myocarditis 
E)  malignant melanoma

Question 13

The coronary vessels

Accepted Answer

A)  supply and drain the heart muscle. 
B)  bypass the heart ventricles. 
C)  send blood directly to the lungs. 
D)  are not really necessary because the heart can get its blood supply from the "inside." 
E)  lead directly from the atria to the ventricles. 
A)  supply and drain the heart muscle. 
B)  bypass the heart ventricles. 
C)  send blood directly to the lungs. 
D)  are not really necessary because the heart can get its blood supply from the "inside." 
E)  lead directly from the atria to the ventricles.

Question 14

The amount of blood each ventricle pumps in a minute is the

Accepted Answer

A)  cardiac output. 
B)  cardiac cycle. 
C)  cardiac volume. 
D)  cardiac tamponade. 
E)  cardiac measure. 
A)  cardiac output. 
B)  cardiac cycle. 
C)  cardiac volume. 
D)  cardiac tamponade. 
E)  cardiac measure.

Question 15

Low density lipoproteins

Accepted Answer

A)  carry cholesterol to the liver. 
B)  line the artery walls. 
C)  are used for nutrition. 
D)  lower blood pressure. 
E)  carry cholesterol and other fats to body cells. 
A)  carry cholesterol to the liver. 
B)  line the artery walls. 
C)  are used for nutrition. 
D)  lower blood pressure. 
E)  carry cholesterol and other fats to body cells.

Question 16

The capillary wall consists of

Accepted Answer

A)  a thin muscular layer and two layers of endothelial cells. 
B)  a single layer of flat endothelium. 
C)  a layer of endothelium, a layer of muscle and a layer of epithelium. 
D)  five layers of endothelium. 
E)  three endothelial layers and one layer of muscle. 
A)  a thin muscular layer and two layers of endothelial cells. 
B)  a single layer of flat endothelium. 
C)  a layer of endothelium, a layer of muscle and a layer of epithelium. 
D)  five layers of endothelium. 
E)  three endothelial layers and one layer of muscle.

Question 17

Which of the following are highly distensible reservoirs for blood volume?

Accepted Answer

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

Question 18

Which of the following statements is true?

Accepted Answer

A)  Arteries carry only oxygenated blood. 
B)  The systemic circuit leaves the heart from the left ventricle. 
C)  Blood passes through only one capillary bed on its trip through the systemic circuit. 
D)  Platelets survive a longer time than erythrocytes. 
E)  The heart is able to pick up the oxygen it needs as the blood flows through it. 
A)  Arteries carry only oxygenated blood. 
B)  The systemic circuit leaves the heart from the left ventricle. 
C)  Blood passes through only one capillary bed on its trip through the systemic circuit. 
D)  Platelets survive a longer time than erythrocytes. 
E)  The heart is able to pick up the oxygen it needs as the blood flows through it.

Question 19

A major risk factor in developing cardiovascular disease is

Accepted Answer

A)  obesity. 
B)  smoking. 
C)  hypertension. 
D)  lack of exercise. 
E)  all of these 
A)  obesity. 
B)  smoking. 
C)  hypertension. 
D)  lack of exercise. 
E)  all of these

Question 20

Selecting the Exception Four of the five answers listed below are related by the "type" of blood they carry. Select the exception.

Accepted Answer

A)  pulmonary artery 
B)  aorta 
C)  hepatic portal vein 
D)  inferior vena cava 
E)  jugular vein 
A)  pulmonary artery 
B)  aorta 
C)  hepatic portal vein 
D)  inferior vena cava 
E)  jugular vein

Exam 7: Circulation: the Heart and Blood Vessels

At the arteriole end of the capillary, precapillary sphincters

A pouchlike weak spot in an artery is known as a(n)

By controlling their musculature, which of the following can vary the resistance to blood flow?

The blood works with the urinary system by

The bicuspid (mitral) valve is located between the

The thick wall that separates the heart into a left and right half is the

Which of the following has the highest blood pressure?

If a physician hears two "lub" sounds instead of one, then which of the following conditions is true?

The blood works with the muscular system by

Oxygen and carbon dioxide exchange between the circulatory system and tissues occurs at the

The heart damage associated with Lyme disease is

The coronary vessels

The amount of blood each ventricle pumps in a minute is the

Low density lipoproteins

The capillary wall consists of

Which of the following are highly distensible reservoirs for blood volume?

Which of the following statements is true?

A major risk factor in developing cardiovascular disease is

Selecting the Exception Four of the five answers listed below are related by the "type" of blood they carry. Select the exception.

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA, Genes, and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

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