Question 1

Baron von Quacko,famous tag-team wrestler,has a famous "sleeper hold" that he uses on his opponents.Using only a single digit on each hand,he presses on his opponent's neck until his opponent passes out.What are the structures on which he is pressing and what is the effect?

Accepted Answer

A)  subclavian arteries; blood flow to brain is stopped
B)  carotid chemoreceptors; blood pressure increases
C)  baroreceptors in carotid sinus; peripheral vasodilation and decreased heart rate
D)  vertebral arteries; blood flow to brain is increased
E)  jugular vein; blood flow back to heart is decreasedF) B) and E)
G) A) and E)

Question 2

A thrombus in the second branch (not including coronary arteries) off of the aortic arch would affect the flow of blood to the

Accepted Answer

A)  left side of the head and neck.
B)  myocardium of the heart.
C)  right side of the head and neck and right upper extremity.
D)  left upper extremity.
E)  right arm.F) A) and E)
G) C) and D)

Question 3

An obstruction in the inferior vena cava would hamper the return of blood from the

Accepted Answer

A)  head and neck.
B)  upper extremities.
C)  lungs.
D)  abdomen,pelvis,and lower limbs.
E)  heart.F) D) and E)
G) A) and D)

Question 4

Capillary walls serve as effective permeability barriers for

Accepted Answer

A)  oxygen and carbon dioxide.
B)  electrolytes.
C)  glucose.
D)  proteins.
E)  small water-soluble molecules.F) A) and D)
G) B) and E)

Question 5

The internal jugular veins join the subclavian veins to form the

Accepted Answer

A)  superior vena cavae.
B)  axillary veins.
C)  brachiocephalic veins.
D)  azygos veins.
E)  external jugular veins.F) B) and C)
G) A) and E)

Question 6

Systemic blood vessels transport blood

Accepted Answer

A)  from the left ventricle through the body to the left atrium.
B)  from the left ventricle through the body to the right atrium.
C)  from the right ventricle through the body to the left atrium.
D)  from the right ventricle through the body to the right atrium.
E)  from the left ventricle to the lungs.F) A) and D)
G) A) and E)

Question 7

The structure of a capillary wall differs from that of a vein or artery because

Accepted Answer

A)  the capillary wall has only two tunics.
B)  capillaries have more smooth muscle.
C)  capillary walls have only endothelium and a basement membrane.
D)  capillaries can constrict or dilate.
E)  capillaries are impermeable to all substances.F) C) and D)
G) A) and B)

Question 8

In the pulmonary circulation,the _____ carry blood to the lungs.

Accepted Answer

A)  carotid sinuses
B)  pulmonary arteries
C)  coronary arteries
D)  superior vena cava and inferior vena cava
E)  aortaF) A) and B)
G) B) and E)

Question 9

Epinephrine

Accepted Answer

A)  increases the heart rate but decreases the stroke volume.
B)  causes vasodilation of coronary blood vessels.
C)  causes vasoconstriction of blood vessels in skeletal muscle.
D)  decreases red blood cell count.
E)  decreases the force of contraction.F) B) and D)
G) B) and E)

Question 10

The blood vessels that are under the greatest pressure are the

Accepted Answer

A)  arterioles.
B)  capillaries.
C)  elastic arteries.
D)  veins.
E)  venules.F) D) and E)
G) A) and D)

Question 11

The greater the compliance the

Accepted Answer

A)  greater the resistance generated in the vessel.
B)  more easily the vessel wall stretches.
C)  longer the blood vessel will measure.
D)  higher the blood pressure will be.
E)  less the elasticity of the vessel.F) A) and E)
G) C) and E)

Question 12

Atherosclerosis is the

Accepted Answer

A)  hypertrophy of the tunica intima.
B)  stretching of arterial walls.
C)  inflammation of veins.
D)  deposition of plaques in arterial walls.E) B) and C)
F) All of the above

Question 13

Which of the following is LESS likely to result in edema?

Accepted Answer

A)  increase in capillary permeability
B)  reduced plasma colloid osmotic pressure
C)  blockage of veins
D)  increased mean arterial pressure
E)  loss of protein molecules in urine through the kidneysF) All of the above
G) None of the above

Question 14

The central nervous system ischemic response

Accepted Answer

A)  is triggered by an increase in blood flow to the vasomotor center.
B)  plays an important role in controlling blood pressure under emergency conditions.
C)  is stimulated by a rise in oxygen.
D)  is inhibited by a rise in the level of hydrogen ions.
E)  plays an important role in regulating blood pressure under normal conditions.F) All of the above
G) A) and B)

Question 15

Blood is moved through the vascular system by

Accepted Answer

A)  valves in the wall of the blood vessels.
B)  peristalsis caused by smooth muscle in the blood vessel walls.
C)  pressure gradients created by the heart.
D)  osmotic pressure.
E)  viscosity of the blood.F) A) and C)
G) B) and E)

Question 16

Match the vessel with the appropriate description.
-azygos vein

Accepted Answer

A)  drains blood from the arm
B)  superficial vein of the head and neck
C)  the posterior intercostals veins join this vein on the right side of the body
D)  deep vein that drains blood from the cranial vault
E)  formed by the union of the internal jugular and the subclavian veinsF) B) and C)
G) A) and B)

Question 17

The vertebral arteries arise from the ________.

Accepted Answer

A)   thyrocervical arteries
B)   right and left common carotid arteries
C)   costocervical arteries
D)   right and left subclavian arteriesE) A) and C)
F) A) and B)

Question 18

The ______ vein connects the basilic vein and cephalic vein.

Accepted Answer

A)   axillary
B)   subclavian
C)   brachial
D)   median antebrachial
E)   median cubitalF) B) and C)
G) A) and E)

Question 19

Peripheral chemoreceptors

Accepted Answer

A)  are located in the aortic and carotid bodies.
B)  are sensitive to small changes in oxygen levels in the blood.
C)  monitor blood pressure.
D)  are not sensitive to carbon dioxide or hydrogen ion levels.
E)  are not sensitive to changes in pH of the blood.F) None of the above
G) A) and B)

Question 20

Which statement is CORRECT?

Accepted Answer

A)  For an artery and vein of the same diameter,the vein would have a thicker wall.
B)  Veins contain valves and arteries do not.
C)  Blood pressure is lower in arteries than in veins.
D)  When empty,an artery is more likely to be collapsed (flattened) than a vein.
E)  Both arteries and veins are under pressure.F) B) and E)
G) None of the above

Exam 21: Cardiovascular System: Blood Vessels and Circulation

Epinephrine

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The greater the compliance the

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The central nervous system ischemic response

Correct AnswerverifiedShow Answer

Atherosclerosis is the

Correct AnswerverifiedShow Answer

Blood is moved through the vascular system by

Correct AnswerverifiedShow Answer

The structure of a capillary wall differs from that of a vein or artery because

Correct AnswerverifiedShow Answer

A thrombus in the second branch (not including coronary arteries) off of the aortic arch would affect the flow of blood to the

Correct AnswerverifiedShow Answer

Baron von Quacko,famous tag-team wrestler,has a famous "sleeper hold" that he uses on his opponents.Using only a single digit on each hand,he presses on his opponent's neck until his opponent passes out.What are the structures on which he is pressing and what is the effect?

Correct AnswerverifiedShow Answer

Match the vessel with the appropriate description. -azygos vein

Correct AnswerverifiedShow Answer

Peripheral chemoreceptors

Correct AnswerverifiedShow Answer

Capillary walls serve as effective permeability barriers for

Correct AnswerverifiedShow Answer

The ______ vein connects the basilic vein and cephalic vein.

Correct AnswerverifiedShow Answer

The blood vessels that are under the greatest pressure are the

Correct AnswerverifiedShow Answer

Which of the following is LESS likely to result in edema?

Correct AnswerverifiedShow Answer

Systemic blood vessels transport blood

Correct AnswerverifiedShow Answer

The vertebral arteries arise from the ________.

Correct AnswerverifiedShow Answer

An obstruction in the inferior vena cava would hamper the return of blood from the

Correct AnswerverifiedShow Answer

In the pulmonary circulation,the _____ carry blood to the lungs.

Correct AnswerverifiedShow Answer

Which statement is CORRECT?

Correct AnswerverifiedShow Answer

The internal jugular veins join the subclavian veins to form the

Correct AnswerverifiedShow Answer

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