Question 1

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 externa 
A) tunica intima 
B) external elastic membrane 
C) tunica media 
D) internal elastic membrane 
E) tunica externa

Question 2

Figure 21-1 Arteries
Use Figure 21-1 to answer the following questions:
-Identify the arteries labeled "9."

Accepted Answer

A) axillary 
B) brachiocephalic 
C) common carotid 
D) aorta 
E) brachial 
A) axillary 
B) brachiocephalic 
C) common carotid 
D) aorta 
E) brachial

Question 3

A(n)________ is a direct connection between an arteriole and a venule.

Accepted Answer

A) arteriovenule joint 
B) collateralization 
C) arteriovenus anastomosis 
D) arteriovenule junction 
E) arch 
A) arteriovenule joint 
B) collateralization 
C) arteriovenus anastomosis 
D) arteriovenule junction 
E) arch

Question 4

Veins from the spleen,pancreas,and internal border of the stomach unite to form the

Accepted Answer

A) celiac trunk. 
B) hepatic portal vein. 
C) splenic vein. 
D) gastric vein. 
E) superior mesenteric vein. 
A) celiac trunk. 
B) hepatic portal vein. 
C) splenic vein. 
D) gastric vein. 
E) superior mesenteric vein.

Question 5

The internal carotids and the basilar artery are interconnected by an anastomosis called the

Accepted Answer

A) common carotid artery. 
B) basal ring. 
C) cerebral arterial circle. 
D) external carotid artery. 
E) arterial bypass. 
A) common carotid artery. 
B) basal ring. 
C) cerebral arterial circle. 
D) external carotid artery. 
E) arterial bypass.

Question 6

Venous valves are responsible for

Accepted Answer

A) preventing anterograde flow. 
B) channeling blood away from the heart. 
C) channeling blood toward the heart. 
D) preventing blood from re-entering a ventricle. 
E) regulating blood pressure in veins. 
A) preventing anterograde flow. 
B) channeling blood away from the heart. 
C) channeling blood toward the heart. 
D) preventing blood from re-entering a ventricle. 
E) regulating blood pressure in veins.

Question 7

Which of the following affects blood flow through the body?

Accepted Answer

A) blood viscosity 
B) turbulence 
C) vascular resistance 
D) vessel diameter 
E) All of the answers are correct. 
A) blood viscosity 
B) turbulence 
C) vascular resistance 
D) vessel diameter 
E) All of the answers are correct.

Question 8

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) sympathetic stimulation of the heart. 
A) heart rate. 
B) cardiac output. 
C) blood flow to the lungs. 
D) parasympathetic stimulation of the heart. 
E) sympathetic stimulation of the heart.

Question 9

Each of the following changes will result in increased blood flow to a tissue except

Accepted Answer

A) increased hematocrit. 
B) increased vessel diameter. 
C) increased blood pressure. 
D) decreased peripheral resistance. 
E) relaxation of precapillary sphincters. 
A) increased hematocrit. 
B) increased vessel diameter. 
C) increased blood pressure. 
D) decreased peripheral resistance. 
E) relaxation of precapillary sphincters.

Question 10

Which of the following equations shows the correct relation between blood flow (F),pressure (P),and resistance (R)?

Accepted Answer

A) P = (F × R)× 4 
B) F = R/P 
C) F = P + R 
D) F = P - R 
E) F = P/R 
A) P = (F × R)× 4 
B) F = R/P 
C) F = P + R 
D) F = P - R 
E) F = P/R

Question 11

The main control of peripheral resistance occurs in the

Accepted Answer

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

Question 12

Which of the following statements is false concerning the movement of fluid between capillaries and interstitial space?

Accepted Answer

A) Blood hydrostatic pressure forces fluid from the capillary to the interstitial space. 
B) Blood osmotic pressure moves fluid from the interstitial space to the capillary. 
C) The osmotic pressure of the interstitial fluid is less than the blood osmotic pressure. 
D) The hydrostatic pressure of the interstitial fluid is largely unimportant in determining fluid movement. 
E) The net filtration pressure is usually zero. 
A) Blood hydrostatic pressure forces fluid from the capillary to the interstitial space. 
B) Blood osmotic pressure moves fluid from the interstitial space to the capillary. 
C) The osmotic pressure of the interstitial fluid is less than the blood osmotic pressure. 
D) The hydrostatic pressure of the interstitial fluid is largely unimportant in determining fluid movement. 
E) The net filtration pressure is usually zero.

Question 13

Elderly individuals are more prone than younger individuals to have all of the following,except

Accepted Answer

A) hypertension. 
B) venous thrombosis. 
C) increased elasticity of vessel walls. 
D) varicose veins. 
E) arteriosclerosis. 
A) hypertension. 
B) venous thrombosis. 
C) increased elasticity of vessel walls. 
D) varicose veins. 
E) arteriosclerosis.

Question 14

After the precapillary arteriole,blood enters a(n)

Accepted Answer

A) venule. 
B) anastomosis. 
C) precapillary sphincter. 
D) capillary bed. 
E) thoroughfare channel. 
A) venule. 
B) anastomosis. 
C) precapillary sphincter. 
D) capillary bed. 
E) thoroughfare channel.

Question 15

Venoconstriction reduces the diameter of which vessel?

Accepted Answer

A) artery 
B) arteriole 
C) capillary 
D) venule 
E) vein 
A) artery 
B) arteriole 
C) capillary 
D) venule 
E) vein

Question 16

The blood vessel that supplies blood to the pancreas,the small intestine,and most of the large intestine is the

Accepted Answer

A) celiac artery. 
B) inferior mesenteric vein. 
C) hepatic portal vein. 
D) gastric vein. 
E) superior mesenteric artery. 
A) celiac artery. 
B) inferior mesenteric vein. 
C) hepatic portal vein. 
D) gastric vein. 
E) superior mesenteric artery.

Question 17

Capillaries with a perforated lining are called

Accepted Answer

A) perforated capillaries. 
B) discontinuous capillaries. 
C) fenestrated capillaries. 
D) sinuses. 
E) vasa vasorum. 
A) perforated capillaries. 
B) discontinuous capillaries. 
C) fenestrated capillaries. 
D) sinuses. 
E) vasa vasorum.

Question 18

After entering the arm,the axillary artery becomes the ________ artery.

Accepted Answer

A) radial 
B) ulnar 
C) brachial 
D) subclavian 
E) digital 
A) radial 
B) ulnar 
C) brachial 
D) subclavian 
E) digital

Question 19

What structure do RBCs move through single-file?

Accepted Answer

A) artery 
B) arteriole 
C) capillary 
D) venule 
E) vein 
A) artery 
B) arteriole 
C) capillary 
D) venule 
E) vein

Question 20

Arteriosclerosis can lead to

Accepted Answer

A) hypertension. 
B) stroke. 
C) coronary artery disease. 
D) myocardial infarction. 
E) All of the answers are correct. 
A) hypertension. 
B) stroke. 
C) coronary artery disease. 
D) myocardial infarction. 
E) All of the answers are correct.

Exam 21: Blood Vessels and Circulation

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

Figure 21-1 Arteries Use Figure 21-1 to answer the following questions: -Identify the arteries labeled "9."

A(n)________ is a direct connection between an arteriole and a venule.

Veins from the spleen,pancreas,and internal border of the stomach unite to form the

The internal carotids and the basilar artery are interconnected by an anastomosis called the

Venous valves are responsible for

Which of the following affects blood flow through the body?

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

Each of the following changes will result in increased blood flow to a tissue except

Which of the following equations shows the correct relation between blood flow (F),pressure (P),and resistance (R)?

The main control of peripheral resistance occurs in the

Which of the following statements is false concerning the movement of fluid between capillaries and interstitial space?

Elderly individuals are more prone than younger individuals to have all of the following,except

After the precapillary arteriole,blood enters a(n)

Venoconstriction reduces the diameter of which vessel?

The blood vessel that supplies blood to the pancreas,the small intestine,and most of the large intestine is the

Capillaries with a perforated lining are called

After entering the arm,the axillary artery becomes the ________ artery.

What structure do RBCs move through single-file?

Arteriosclerosis can lead to

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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