Anatomy & Physiology
Anatomy & Physiology
3rd Edition
ISBN: 9781259398629
Author: McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher: Mcgraw Hill Education,
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Chapter 6, Problem 1DYB

_____1. Which statement is false about sebaceous glands?

  1. a. They release their secretion onto a hair follicle.
  2. b. They release their product by apocrine secretion.
  3. c. They are located in the dermis.
  4. d. The product they secrete acts as a lubricant and waterproofer.
Expert Solution & Answer
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Summary Introduction

Introduction:

Sebaceous glands are also called holocrine glands as they secrete oily, waxy secretion called sebum. It acts as a lubricant and prevents skin and hair from becoming dry, brittle and cracked.

Answer to Problem 1DYB

Correct answer:

Sebaceous gland releases their product by apocrine gland is a false statement. Therefore, option b. is correct.

Explanation of Solution

Reason for the correct statement:

Option b. is given as “they release their product by apocrine gland”. The sebaceous gland releases their secretion by the holocrine gland. It secretes waxy, oily secretion called sebum in hair follicles and onto hair. Sebum acts as a lubricant that helps to lubricate the skin and hair. It prevents skin and hair from becoming dry and brittle. It is stimulated by androgen hormone in male and female during puberty.

Hence, option b. is correct.

Reasons for the incorrect statements:

Option a. is given as “They release their secretion onto hair follicles”. The sebaceous gland secretes sebum which is oily and waxy substances present on hair follicles. Hence, option a. is incorrect

Option c. is given as “They are located in the dermis”. The sebaceous glands are located in the dermis of skin as it contains connective tissues, blood vessels, oil and sweat glands. Hence, option c. is incorrect.

Option d. is given as “The product they secrete act as lubricant and waterproofer”. The sebaceous gland secretes sebum which is an oily and waxy substance that acts as a lubricant and is waterproof due to its waxy nature. Hence, option d. is incorrect.

Hence, options a., c., and d. are incorrect.

Conclusion

The sebaceous gland is a holocrine gland that secretes an oily and waxy substance called sebum that acts as a lubricant for skin and hair.

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Chapter 6 Solutions

Anatomy & Physiology

Ch. 6.1 - Prob. 6LOCh. 6.1 - Compare and contrast the papillary versus...Ch. 6.1 - What is indicated by the lines of cleavage in the...Ch. 6.1 - Prob. 7LOCh. 6.1 - What types of tissue form the subcutaneous layer?Ch. 6.1 - Prob. 8LOCh. 6.1 - Prob. 9LOCh. 6.1 - Prob. 10LOCh. 6.1 - Prob. 11LOCh. 6.1 - Prob. 12LOCh. 6.1 - Prob. 13LOCh. 6.1 - WHAT DO YOU THINK? 2 During the Industrial...Ch. 6.1 - How does the skin produce vitamin D?Ch. 6.1 - Is the skin entirely waterproof? Explain.Ch. 6.1 - Prob. 10WDLCh. 6.2 - Prob. 14LOCh. 6.2 - Prob. 15LOCh. 6.2 - What is the difference between the eponychium and...Ch. 6.2 - Prob. 16LOCh. 6.2 - Prob. 17LOCh. 6.2 - What are the three zones of a hair?Ch. 6.2 - How does hair function in protection and heat...Ch. 6.2 - Prob. 18LOCh. 6.2 - Prob. 19LOCh. 6.2 - Prob. 20LOCh. 6.2 - Prob. 3WDTCh. 6.2 - Prob. 14WDLCh. 6.2 - What do sebaceous glands secrete, and where is...Ch. 6.3 - Prob. 21LOCh. 6.3 - Prob. 22LOCh. 6.3 - What is granulation tissue, and when does it...Ch. 6.4 - LEARNING OBJECTIVES 23. Describe how integument...Ch. 6.4 - Prob. 24LOCh. 6.4 - What two primary germ layers form the integument?Ch. 6.4 - Prob. 25LOCh. 6.4 - Prob. 26LOCh. 6.4 - How do UV rays contribute to skin aging?Ch. 6 - _____1. Which statement is false about sebaceous...Ch. 6 - _____ 2. The layer of the epidermis in which cells...Ch. 6 - _____ 3. The sweat glands that communicate with...Ch. 6 - _____ 4. Which of the following is not a function...Ch. 6 - Prob. 5DYBCh. 6 - Do You Know the Basics? 6. Which statement is...Ch. 6 - Prob. 7DYBCh. 6 - _____ 8. The cells in a hair follicle that are...Ch. 6 - Prob. 9DYBCh. 6 - Prob. 10DYBCh. 6 - Describe the composition of the layers of the...Ch. 6 - Prob. 12DYBCh. 6 - Describe the tissue type and structure of the two...Ch. 6 - Prob. 14DYBCh. 6 - Compare the structure and composition of the...Ch. 6 - Prob. 16DYBCh. 6 - Where are ceruminous glands located, and what do...Ch. 6 - Discuss the steps involved in wound repair of the...Ch. 6 - Prob. 19DYBCh. 6 - Prob. 20DYBCh. 6 - Prob. 1CALCh. 6 - Prob. 2CALCh. 6 - Prob. 3CALCh. 6 - Prob. 1CSLCh. 6 - Prob. 2CSLCh. 6 - At the age of 50, John noticed that one of the...
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