Chapter 21 Principles of Anatomy & Physiology 14th edition by Gerard J Tortora

Chapter 21 Principles of Anatomy & Physiology 14th edition by Gerard J Tortora

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

1) Which of the following blood vessels carries blood away from the heart to other organs?

 

1. a) arteries
2. b) capillaries
3. c) venules
4. d) arterioles
5. e) veins

 

Answer: a

 

Difficulty: Easy

Study Objective 1: SO 21.1 Describe the pressure and volume relationships of the vessels as blood moves in its passage from the heart to the capillaries and back.

Study Objective 2: SO 21.1.2 Outline the vessels through which the blood moves in its passage from the heart to the capillaries and back.

Section Reference 1: Sec 21.1 Structure and Function of Blood Vessels

 

 

2) Which of the following blood vessels carries blood from the tissues back to the heart?

 

1. a) arteries
2. b) arterioles
3. c) aorta
4. d) veins
5. e) capillaries

 

Answer: d

 

Difficulty: Easy

Study Objective 1: SO 21.1 Describe the pressure and volume relationships of the vessels as blood moves in its passage from the heart to the capillaries and back.

Study Objective 2: SO 21.1.2 Outline the vessels through which the blood moves in its passage from the heart to the capillaries and back.

Section Reference 1: Sec 21.1 Structure and Function of Blood Vessels

 

 

3) Which layer of the arterial wall is responsible for vasoconstriction?

 

1. a) tunica interna
2. b) tunica media
3. c) tunica externa
4. d) tunica albuginea
5. e) tunica fascia

 

Answer: b

 

Difficulty: Medium

Study Objective 1: SO 21.1 Describe the pressure and volume relationships of the vessels as blood moves in its passage from the heart to the capillaries and back.

Study Objective 2: SO 21.1.1 Contrast the structure and function of arteries, arterioles, capillaries, venules, and veins.

Section Reference 1: Sec 21.1 Structure and Function of Blood Vessels

 

 

4) Which layer of the arterial wall is primarily composed of elastic and collagen fibers?

 

1. a) tunica interna
2. b) tunica media
3. c) tunica externa
4. d) tunica albuginea
5. e) tunica fascia

 

Answer: c

 

Difficulty: Medium

Study Objective 1: SO 21.1 Describe the pressure and volume relationships of the vessels as blood moves in its passage from the heart to the capillaries and back.

Study Objective 2: SO 21.1.1 Contrast the structure and function of arteries, arterioles, capillaries, venules, and veins.

Section Reference 1: Sec 21.1 Structure and Function of Blood Vessels

 

 

5) When an artery or arteriole is damaged, its smooth muscle layer contracts producing

 

1. a) tear in the vessel.
2. b) new vessel branching off the artery or arteriole.
3. c) a vascular spasm.
4. d) tetanus.
5. e) increased blood flow to the damaged vessel.

 

Answer: c

 

Difficulty: Medium

Study Objective 1: SO 21.1 Describe the pressure and volume relationships of the vessels as blood moves in its passage from the heart to the capillaries and back.

Study Objective 2: SO 21.1.1 Contrast the structure and function of arteries, arterioles, capillaries, venules, and veins.

Section Reference 1: Sec 21.1 Structure and Function of Blood Vessels