Question 1

Identify the six structures that are vital to fetal circulation but cease to function at birth,and describe what becomes of these structures.

Accepted Answer

The six structures vital to fetal circul...

Question 2

Describe the systemic circuit.

Accepted Answer

A)  The systemic circuit consists of the vasculature in the heart.
B)  The systemic circuit transports blood from the right ventricle through the pulmonary arteries,capillaries in the lungs,and pulmonary veins and returns it to the left atrium.
C)  The systemic circuit transports blood through the arteries,capillaries,and veins of the body from the left ventricle to the right atrium.
D)  The systemic circuit transports blood from the left ventricle through the pulmonary arteries,capillaries in the lungs,and pulmonary veins and returns it to the right atrium.
E)  The systemic circuit transports blood from the left ventricle through the pulmonary veins,capillaries in the lungs,and pulmonary arteries and returns it to the right atrium.F) B) and E)
G) C) and D)

Question 3

The blood vessel that supplies blood to the liver,stomach,and spleen is the

Accepted Answer

A)  gastric artery.
B)  renal artery.
C)  superior mesenteric artery.
D)  celiac trunk.
E)  common iliac artery.F) B) and D)
G) B) and E)

Question 4

Increased levels of carbon dioxide in the blood will result in decreased

Accepted Answer

A)  heart rate.
B)  cardiac output.
C)  blood flow to the lungs.
D)  parasympathetic stimulation of the heart.
E)  None of the answers is correct.F) D) and E)
G) A) and B)

Question 5

The blood vessel that directly carries blood to the arm and shoulder is the

Accepted Answer

A)  aorta.
B)  brachial artery.
C)  common carotid artery.
D)  subclavian artery.
E)  ulnar artery.F) A) and D)
G) A) and E)

Question 6

The vein in the arm commonly sampled for blood by venipuncture is the

Accepted Answer

A)  ulnar vein.
B)  radial vein.
C)  median cubital vein.
D)  brachial vein.
E)  cephalic vein.F) A) and B)
G) B) and C)

Question 7

Blood flow through a capillary is controlled by the

Accepted Answer

A)  vasa vasorum.
B)  sinusoids.
C)  precapillary sphincters.
D)  thoroughfare channel.
E)  collaterals.F) A) and B)
G) C) and D)

Question 8

Describe the respiratory pump.

Accepted Answer

A)  The respiratory pump is a mechanism by which a reduction of pressure in the thoracic cavity during inhalation assists venous return to the heart.
B)  The respiratory pump is a mechanism by which contraction of the lungs propels blood through the thoracic cavity to the heart.
C)  The respiratory pump is a mechanism by which bronchoconstriction propels blood through the thoracic cavity to the heart.
D)  The respiratory pump is a mechanism by which an increase in pressure in the thoracic cavity during exhalation pushes blood towards the heart.
E)  The respiratory pump is a mechanism by which alternating cycles of bronchiolar constriction and bronchiolar dilation propel blood towards the heart.F) B) and E)
G) A) and D)

Question 9

Blood returning from the systemic circuit enters the

Accepted Answer

A)  left atrium.
B)  left ventricle.
C)  right atrium.
D)  right ventricle.E) All of the above
F) A) and D)

Question 10

Identify the hormones responsible for short-term regulation of decreasing blood pressure and blood volume.

Accepted Answer

A)  ADH and aldosterone
B)  aldosterone and cortisol
C)  epinephrine and norepinephrine
D)  natriuretic peptides
E)  erythropoietin and thrombopoietinF) A) and D)
G) A) and C)

Question 11

Sinusoids can be found in the

Accepted Answer

A)  skeletal muscle.
B)  cartilage.
C)  central nervous system.
D)  liver.
E)  epithelia.F) A) and B)
G) A) and C)

Question 12

Which of the following is not a characteristic of venous valves?

Accepted Answer

A)  preventing backflow of blood
B)  channeling blood away from the heart
C)  channeling blood toward the heart
D)  permit blood flow in one direction only
E)  all of the aboveF) C) and E)
G) A) and B)

Question 13

All of the veins listed are deep veins except

Accepted Answer

A)  superior vena cava.
B)  internal jugular.
C)  cephalic.
D)  femoral.
E)  anterior tibial.F) A) and D)
G) None of the above

Question 14

The earliest precursor cells that give rise to blood cells are

Accepted Answer

A)  angioblasts.
B)  hemangioblasts.
C)  reticulocytes.
D)  lymphoid stem cells.
E)  osteoblasts.F) C) and D)
G) B) and E)

Question 15

Describe the changes in cardiac output and blood flow during exercise.

Accepted Answer

During exercise,cardiac output increases...

Question 16

What is the function of chemoreceptor reflexes?

Accepted Answer

Chemoreceptor reflexes respond to decrea...

Question 17

Identify two veins that carry blood away from the stomach.

Accepted Answer

A)  left gastro-epiploic and right gastro-epiploic veins
B)  left colic and right colic veins
C)  superior mesenteric and inferior mesenteric veins
D)  middle colic and ileocolic veins
E)  superior mesenteric and cystic veinsF) A) and B)
G) None of the above

Question 18

Describe circulatory shock,progressive shock,and irreversible shock.

Accepted Answer

Circulatory shock occurs when blood loss...

Question 19

Chemoreceptor reflexes respond to

Accepted Answer

A)  carbon dioxide.
B)  oxygen.
C)  pH.
D)  All of the answers are correct.
E)  None of the answers is correct.F) B) and C)
G) A) and E)

Question 20

Which of the following layers of a vessel contains collagen fibers with scattered bands of elastic fibers?

Accepted Answer

A)  tunica intima
B)  external elastic membrane
C)  tunica media
D)  internal elastic membrane
E)  tunica externaF) A) and D)
G) A) and C)

Exam 19: Blood Vessels and Circulation

The vein in the arm commonly sampled for blood by venipuncture is the

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The earliest precursor cells that give rise to blood cells are

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Identify the six structures that are vital to fetal circulation but cease to function at birth,and describe what becomes of these structures.

Correct AnswerverifiedThe six structures vital to fetal circul...View AnswerShow Answer

The blood vessel that supplies blood to the liver,stomach,and spleen is the

Correct AnswerverifiedShow Answer

Sinusoids can be found in the

Correct AnswerverifiedShow Answer

Describe the systemic circuit.

Correct AnswerverifiedShow Answer

Blood returning from the systemic circuit enters the

Correct AnswerverifiedShow Answer

Blood flow through a capillary is controlled by the

Correct AnswerverifiedShow Answer

Increased levels of carbon dioxide in the blood will result in decreased

Correct AnswerverifiedShow Answer

What is the function of chemoreceptor reflexes?

Correct AnswerverifiedChemoreceptor reflexes respond to decrea...View AnswerShow Answer

Identify the hormones responsible for short-term regulation of decreasing blood pressure and blood volume.

Correct AnswerverifiedShow Answer

Describe circulatory shock,progressive shock,and irreversible shock.

Correct AnswerverifiedCirculatory shock occurs when blood loss...View AnswerShow Answer

Describe the respiratory pump.

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Which of the following layers of a vessel contains collagen fibers with scattered bands of elastic fibers?

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Identify two veins that carry blood away from the stomach.

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All of the veins listed are deep veins except

Correct AnswerverifiedShow Answer

Chemoreceptor reflexes respond to

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Which of the following is not a characteristic of venous valves?

Correct AnswerverifiedShow Answer

Describe the changes in cardiac output and blood flow during exercise.

Correct AnswerverifiedDuring exercise,cardiac output increases...View AnswerShow Answer

The blood vessel that directly carries blood to the arm and shoulder is the

Correct AnswerverifiedShow Answer

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The six structures vital to fetal circul...
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Chemoreceptor reflexes respond to decrea...
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Circulatory shock occurs when blood loss...
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Correct Answer
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Correct Answer
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During exercise,cardiac output increases...
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Correct Answer
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