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_____1. Which statement is false about sebaceous glands?
- a. They release their secretion onto a hair follicle.
- b. They release their product by apocrine secretion.
- c. They are located in the dermis.
- d. The product they secrete acts as a lubricant and waterproofer.
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 1DYKB
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.
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 and Physiology - With Access
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Anatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College
