HISTOLOGY
INTEGUMENTARY SYSTEM SKIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
A bundle of smooth muscle cells, forming the arrector pili muscle, attaches to each hair follicle and causes goosebumps.
|
|
true
|
|
|
false
|
|
|
Either A or B
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -The arrector pili muscle is a small bundle of smooth muscle cells associated with the hair follicle. Contractions of this muscle elevate the hair, forming goose bumps, to release heat and help sebum to be released from gland into duct.
Detailed explanation-2: -The arrector pili muscle (APM) consists of a small band of smooth muscle that connects the hair follicle to the connective tissue of the basement membrane.
Detailed explanation-3: -The hair follicle bulge in the epidermis associates with the arrector pili muscle (APM) that is responsible for piloerection (commonly called “goosebumps").
There is 1 question to complete.