Question 1

The abdominal aorta divides at its distal end into which arteries?

Accepted Answer

A)  the femoral arteries 
B)  the common iliac arteries 
C)  the external iliac arteries 
D)  the internal iliac arteries 
A)  the femoral arteries 
B)  the common iliac arteries 
C)  the external iliac arteries 
D)  the internal iliac arteries

Question 2

The right gonadal vein drains into the

Accepted Answer

A)  lumbar vein. 
B)  inferior vena cava. 
C)  internal iliac vein. 
D)  renal vein. 
A)  lumbar vein. 
B)  inferior vena cava. 
C)  internal iliac vein. 
D)  renal vein.

Question 3

What prevents the backflow of blood in veins?

Accepted Answer

A)  valves 
B)  increased blood pressure 
C)  thick smooth muscle and elastic layers 
D)  the narrowed lumen 
A)  valves 
B)  increased blood pressure 
C)  thick smooth muscle and elastic layers 
D)  the narrowed lumen

Question 4

A blood vessel that ranges from 0.3 mm to about 1 cm in diameter and has a large tunica media relative to the size of the lumen is

Accepted Answer

A)  a muscular artery. 
B)  a capillary. 
C)  an elastic artery. 
D)  an arteriole. 
A)  a muscular artery. 
B)  a capillary. 
C)  an elastic artery. 
D)  an arteriole.

Question 5

Which body tissues lack capillaries?

Accepted Answer

A)  tendons and ligaments 
B)  the myocardium and epicardium of the heart 
C)  bones 
D)  the lens and the cornea 
A)  tendons and ligaments 
B)  the myocardium and epicardium of the heart 
C)  bones 
D)  the lens and the cornea

Question 6

Phlebitis is

Accepted Answer

A)  ballooning of an artery. 
B)  cancer of the tunica intima. 
C)  a condition characterized by excessively leaky capillaries. 
D)  inflammation of a vein. 
A)  ballooning of an artery. 
B)  cancer of the tunica intima. 
C)  a condition characterized by excessively leaky capillaries. 
D)  inflammation of a vein.

Question 7

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)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 8

Arterioles and venules have a vasa vasorum to provide nutrients to their outer walls, whereas the inner walls receive nutrients from blood in the lumen.

Accepted Answer

A) True 
 B)False

Question 9

Structure that regulates blood flow into true capillaries.

Accepted Answer

A)  fenestrations 
B)  metarteriole 
C)  thoroughfare channel 
D)  sinusoids 
E)  precapillary sphincter 
A)  fenestrations 
B)  metarteriole 
C)  thoroughfare channel 
D)  sinusoids 
E)  precapillary sphincter

Question 10

Figure 20.1
Use the diagram above to answer the following questions.
-Identify the letter that is indicating the lumen.

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  E 
A)  A 
B)  B 
C)  C 
D)  D 
E)  E

Question 11

The blood-brain barrier consists of capillaries with complete and no intercellular clefts.

Accepted Answer

The answer of The blood-brain barrier consists of capillaries with...

Question 12

In a capillary bed, relaxation of the precapillary sphincters causes more blood to flow

Accepted Answer

A)  through the metarterioles. 
B)  through the true capillaries. 
C)  into the arterioles. 
D)  into the thoroughfare channels. 
A)  through the metarterioles. 
B)  through the true capillaries. 
C)  into the arterioles. 
D)  into the thoroughfare channels.

Question 13

Postcapillary venules function much like true capillaries.

Accepted Answer

A) True 
 B)False

Question 14

Systemic venous blood that is oxygen-poor but contains the lowest concentration of nitrogenous wastes occurs in the

Accepted Answer

A)  hepatic portal vein. 
B)  renal veins. 
C)  pulmonary veins. 
D)  umbilical veins of the fetus. 
A)  hepatic portal vein. 
B)  renal veins. 
C)  pulmonary veins. 
D)  umbilical veins of the fetus.

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

Which arteries connect the basilar artery and the internal carotid artery forming the posterior aspect of the cerebral arterial circle?

Accepted Answer

A)  ulnar artery that encircles the elbow joint 
B)  anterior communicating arteries 
C)  genicular arteries that encircle the knee 
D)  posterior communicating arteries 
A)  ulnar artery that encircles the elbow joint 
B)  anterior communicating arteries 
C)  genicular arteries that encircle the knee 
D)  posterior communicating arteries

Question 17

Wide leaky capillaries found in bone marrow and spleen.

Accepted Answer

A)  continuous capillaries 
B)  metarterioles 
C)  sinusoids 
D)  fenestrated capillaries 
E)  none of the above 
A)  continuous capillaries 
B)  metarterioles 
C)  sinusoids 
D)  fenestrated capillaries 
E)  none of the above

Question 18

Blood passing through the fetal ductus arteriosus bypasses the

Accepted Answer

A)  right ventricle, pulmonary trunk, and lungs. 
B)  right atrium and ventricle. 
C)  pulmonary trunk and lungs. 
D)  lungs, left atrium, and ventricle. 
A)  right ventricle, pulmonary trunk, and lungs. 
B)  right atrium and ventricle. 
C)  pulmonary trunk and lungs. 
D)  lungs, left atrium, and ventricle.

Question 19

Which of the following statements about arterioles is false?

Accepted Answer

A)  They have the largest content of smooth muscle in their tunica media. 
B)  They regulate the flow of blood to capillary beds through contraction and relaxation of the tunica media. 
C)  They redirect blood flow in a sympathetic response to skeletal muscle. 
D)  They can lead into metarterioles. 
A)  They have the largest content of smooth muscle in their tunica media. 
B)  They regulate the flow of blood to capillary beds through contraction and relaxation of the tunica media. 
C)  They redirect blood flow in a sympathetic response to skeletal muscle. 
D)  They can lead into metarterioles.

Question 20

Which of the following is most likely to become a varicose vein?

Accepted Answer

A)  the femoral vein 
B)  the popliteal vein 
C)  the fibular (peroneal) vein 
D)  the saphenous vein 
A)  the femoral vein 
B)  the popliteal vein 
C)  the fibular (peroneal) vein 
D)  the saphenous vein

Exam 20: The Cardiovascular System: Blood

The abdominal aorta divides at its distal end into which arteries?

The right gonadal vein drains into the

What prevents the backflow of blood in veins?

A blood vessel that ranges from 0.3 mm to about 1 cm in diameter and has a large tunica media relative to the size of the lumen is

Which body tissues lack capillaries?

Phlebitis is

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.

Arterioles and venules have a vasa vasorum to provide nutrients to their outer walls, whereas the inner walls receive nutrients from blood in the lumen.

Structure that regulates blood flow into true capillaries.

Figure 20.1 Use the diagram above to answer the following questions. -Identify the letter that is indicating the lumen.

The blood-brain barrier consists of capillaries with complete and no intercellular clefts.

In a capillary bed, relaxation of the precapillary sphincters causes more blood to flow

Postcapillary venules function much like true capillaries.

Systemic venous blood that is oxygen-poor but contains the lowest concentration of nitrogenous wastes occurs in the

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

Which arteries connect the basilar artery and the internal carotid artery forming the posterior aspect of the cerebral arterial circle?

Wide leaky capillaries found in bone marrow and spleen.

Blood passing through the fetal ductus arteriosus bypasses the

Which of the following statements about arterioles is false?

Which of the following is most likely to become a varicose vein?

An Introduction to Anatomy

The Cell

The Tissue Level of Organization

The Integumentary System

The Skeletal System: Osseous Tissue and Skeletal Structure

The Skeletal System: Axial Division

The Skeletal System: Appendicular Division

The Skeletal System: Articulations

The Muscular System: Skeletal Muscle Tissue and Muscle Organization

The Muscular System: the Axial Musculature

The Muscular System: the Appendicular Musculature

Surface Anatomy

The Nervous System: Neural Tissue

The Nervous System: the Spinal Cord and Spinal Nerves

The Nervous System: the Brain and Cranial Nerves

The Nervous System: Pathways and Higher-Order Functions

The Nervous System: Autonomic Division

The Nervous System: General and Special Senses

The Endocrine System

The Cardiovascular System: the Heart

The Cardiovascular System: Vessels and Circulation

The Lymphatic System

The Respiratory System

The Digestive System

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