Question 1

Paired fetal umbilical veins carry blood from the fetus to the placenta, whereas the unpaired umbilical artery returns blood from the placenta to the fetus.

Accepted Answer

A) True 
 B)False

Question 2

Fenestrated capillaries

Accepted Answer

A)   are located in the central nervous system.
B)   have pores in their walls.
C)   permit the movement of very few molecules.
D)   occur in most of the organs of the body.E) B) and C)
F) All of the above

Question 3

Figure 20.1
Use the diagram above to answer the following questions.
-Identify the letter that indicates a connective tissue layer consisting of longitudinal collagen fibers.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) B) and E)
G) A) and B)

Question 4

The pulse of the posterior tibial artery is palpated behind the knee.

Accepted Answer

A) True 
 B)False

Question 5

Figure 20.1
Use the diagram above to answer the following questions.
-Identify the letter that indicates the subendothelial layer associated with larger blood vessels.

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) A) and D)
G) C) and D)

Question 6

Precapillary sphincters allow blood to leave this structure and enter true capillaries.

Accepted Answer

A)   sinusoids
B)   fenestrated capillaries
C)   continuous capillaries
D)   metarterioles
E)   none of the aboveF) A) and C)
G) None of the above

Question 7

The ________ delivers arterial blood to the rotator cuff muscles and thyroid gland.

Accepted Answer

A)   axillary artery
B)   costocervical trunk
C)   thyrocervical trunk
D)   vertebral arteryE) All of the above
F) None of the above

Question 8

The presence of ________ in the veins and the action of skeletal muscle pressing on the walls ensure that blood return to the heart is in one direction.

Accepted Answer

The answer of The presence of ________ in the veins...

Question 9

In the adult, the hepatic portal system carries nutrients absorbed from the digestive tract to the liver. In the fetus, nutrients are absorbed at the placenta, and the vessel that carries these nutrients to the liver is the

Accepted Answer

A)   hepatic portal vein.
B)   placental vein.
C)   umbilical vein.
D)   internal iliac vein.E) All of the above
F) B) and C)

Question 10

A "coming together" of alternate pathways of blood vessels.

Accepted Answer

A)   thoroughfare channel
B)   vasa vasorum
C)   metarterioles
D)   vascular anastomosis
E)   converging veinsF) B) and E)
G) A) and B)

Question 11

If a physician cannot feel a pulse in the popliteal fossa, the ________ artery is most likely narrowed by atherosclerosis.

Accepted Answer

A)   dorsalis pedis
B)   femoral
C)   fibular
D)   greater saphenousE) A) and C)
F) B) and D)

Question 12

The lumbar veins drain the inferior posterior abdominal wall and direct oxygen-poor blood into the

Accepted Answer

A)   superior vena cava.
B)   internal iliac vein.
C)   external iliac vein.
D)   inferior vena cava.E) A) and B)
F) B) and C)

Question 13

Capillaries that allow a high degree of flow between the blood and tissue fluid usually have pores called ________ in their membranes.

Accepted Answer

The answer of Capillaries that allow a high degree of...

Question 14

The extensor muscles of the forearm are supplied by which artery?

Accepted Answer

A)   radial
B)   posterior interosseous
C)   ulnar
D)   deep palmar archE) B) and C)
F) None of the above

Question 15

Which of the following is not a branch of the celiac trunk?

Accepted Answer

A)   left gastric artery
B)   common hepatic artery
C)   sigmoidal artery
D)   splenic arteryE) A) and C)
F) A) and D)

Question 16

Venous blood from the hands can be drained towards the heart through the radial, ulnar, median, cephalic, and ________ veins.

Accepted Answer

The answer of Venous blood from the hands can be...

Question 17

Microvasculature that provides nourishment to the outer walls of the aorta.

Accepted Answer

A)   tunica intima
B)   subendothelial layer
C)   tunica media
D)   tunica externa
E)   vasa vasorumF) A) and C)
G) B) and E)

Question 18

By definition, veins are

Accepted Answer

A)   vessels that carry blood toward the heart.
B)   vessels that always carry nutrient-poor blood.
C)   the only vessels that lead from capillaries.
D)   vessels that carry oxygen-poor blood.E) C) and D)
F) A) and B)

Question 19

Present in most capillaries, these structures are absent in those of the blood-brain barrier.

Accepted Answer

A)   tight junctions
B)   endothelial cells
C)   basement membrane
D)   intercellular clefts
E)   pericytesF) C) and D)
G) All of the above

Question 20

Venous blood from the right posterior intercostal veins (except the first intercostal space) flows to the unpaired ________ vein and on to the superior vena cava.

Accepted Answer

The answer of Venous blood from the right posterior intercostal...

Exam 20: Blood Vessels

If a physician cannot feel a pulse in the popliteal fossa, the ________ artery is most likely narrowed by atherosclerosis.

Correct AnswerverifiedShow Answer

Microvasculature that provides nourishment to the outer walls of the aorta.

Correct AnswerverifiedShow Answer

The lumbar veins drain the inferior posterior abdominal wall and direct oxygen-poor blood into the

Correct AnswerverifiedShow Answer

Venous blood from the right posterior intercostal veins (except the first intercostal space) flows to the unpaired ________ vein and on to the superior vena cava.

Correct AnswerverifiedShow Answer

The pulse of the posterior tibial artery is palpated behind the knee.

Correct AnswerverifiedShow Answer

Figure 20.1 Use the diagram above to answer the following questions. -Identify the letter that indicates a connective tissue layer consisting of longitudinal collagen fibers.

Correct AnswerverifiedShow Answer

The extensor muscles of the forearm are supplied by which artery?

Correct AnswerverifiedShow Answer

The ________ delivers arterial blood to the rotator cuff muscles and thyroid gland.

Correct AnswerverifiedShow Answer

Precapillary sphincters allow blood to leave this structure and enter true capillaries.

Correct AnswerverifiedShow Answer

Fenestrated capillaries

Correct AnswerverifiedShow Answer

Venous blood from the hands can be drained towards the heart through the radial, ulnar, median, cephalic, and ________ veins.

Correct AnswerverifiedShow Answer

Present in most capillaries, these structures are absent in those of the blood-brain barrier.

Correct AnswerverifiedShow Answer

Figure 20.1 Use the diagram above to answer the following questions. -Identify the letter that indicates the subendothelial layer associated with larger blood vessels.

Correct AnswerverifiedShow Answer

The presence of ________ in the veins and the action of skeletal muscle pressing on the walls ensure that blood return to the heart is in one direction.

Correct AnswerverifiedShow Answer

Capillaries that allow a high degree of flow between the blood and tissue fluid usually have pores called ________ in their membranes.

Correct AnswerverifiedShow Answer

A "coming together" of alternate pathways of blood vessels.

Correct AnswerverifiedShow Answer

By definition, veins are

Correct AnswerverifiedShow Answer

Which of the following is not a branch of the celiac trunk?

Correct AnswerverifiedShow Answer

Paired fetal umbilical veins carry blood from the fetus to the placenta, whereas the unpaired umbilical artery returns blood from the placenta to the fetus.

Correct AnswerverifiedShow Answer

In the adult, the hepatic portal system carries nutrients absorbed from the digestive tract to the liver. In the fetus, nutrients are absorbed at the placenta, and the vessel that carries these nutrients to the liver is the

Correct AnswerverifiedShow Answer

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