NEET PG DENTAL EXAM

HISTOLOGY

INTEGUMENTARY SYSTEM SKIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When arrector pili muscles contract they cause (choose all that apply)
A
hair to relax
B
hair to stand up
C
sweating
D
goosebumps
Explanation: 

Detailed explanation-1: -The arrector pili muscle is a tiny muscle connected to each hair follicle and the skin. When it contracts it causes the hair to stand erect, and a “goosebump” forms on the skin. The hair follicle is a tube-shaped sheath that surrounds the part of the hair that is under the skin and nourishes the hair.

Detailed explanation-2: -In cold conditions, to generate heat the arrector pili muscles contracts that cause hairs on the skin to stand straight. Complete answer: The muscular system of the human body allows movement and is made up of different types of muscles.

Detailed explanation-3: -Arrector pili: A microscopic band of muscle tissue which connects a hair follicle to the dermis. When stimulated, the arrector pili will contract and cause the hair to become more perpendicular to the skin surface (stand on end).

There is 1 question to complete.