Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159080
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: Mcgraw-hill Education,
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Textbook Question
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Chapter 47, Problem 1PL

The middle layer of an artery and vein contains mostly
a. connective tissue.
b. simple squamous epithelium.
c. smooth muscle.
d. nervous tissue.

Expert Solution & Answer
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Summary Introduction

Introduction:

In most animals, the heart is a muscular organ that draws blood of the circulatory system through the blood vessels. In humans, the heart is located in the middle part of the chest, between the lungs. In humans, other mammals and birds, the heart is divided into 4 chambers: the upper left and right atria and the lower left and right ventricle.

Answer to Problem 1PL

Correct answer

The correct answer is option (c) smooth muscle.

Explanation of Solution

Explanation/justification for the correct answer

Option (c) smooth muscle. The smooth muscle lacks non-striated muscle. The smooth muscle usually forms the subsidiary tissue of blood vessels and hollow internal organs (stomach, bladder, and intestine). It is seen in the veins and arteries. So, this is the correct option.

Explanation for incorrect answer

Option (a) connective tissue. Connective tissue is located everywhere, including another body tissue and the nervous system. So, this is an incorrect option.

Option (b) simple squamous epithelium. They are seen in alveoli, glomeruli, capillaries, and other tissues where rapid increase is required. So, this is an incorrect option.

Option (d) nervous tissue. Nervous tissue is seen in Peripheral Nerves everywhere in the body and the Central Nervous System organs, brain, and spinal cord. So, this is an incorrect option.

Conclusion

The middle (or intermediate) layer of an artery and veins includes only smooth muscle. Hence the correct answer is option (c) smooth muscle.

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Students have asked these similar questions
Which of the following best describes an artery? Select one: a. thin-walled, and supplied with valves and nerves b. thin-walled, elastic and supplied with nerves c. thick-walled, elastic and supplied with nerves d. thick-walled, elastic and supplied with valves
Arteries differ from veins in their thicker ____ and ____. a. squamous epithelium . . . outer layer b. endothelium . . . connections to precapillary sphincters c. smooth muscle . . . one-way valves d. outer connective tissue . . . smooth muscle
Which of the following characteristics is unique to capillaries and not to other blood vessels?   A. have low blood pressure   B. have high blood pressure   C. exchange substances (ions, small molecules and water) between blood and tissues   D. carry oxygen and carbon dioxide   E. connect to the heart and lungs

Chapter 47 Solutions

Laboratory Manual For Human Anatomy & Physiology

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