NEET PG DENTAL EXAM

HISTOLOGY

INTEGUMENTARY SYSTEM SKIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which muscle causes goosebumps?
A
Erector Pili
B
Teres major
C
Infraspinatus
D
Dermatapili
Explanation: 

Detailed explanation-1: -Goosebumps occur when tiny muscles in our skin’s hair follicles, called arrector pili muscles, pull hair upright.

Detailed explanation-2: -The arrector pili muscles, also known as hair erector muscles, are small muscles attached to hair follicles in mammals. Contraction of these muscles causes the hairs to stand on end, known colloquially as goose bumps (piloerection).

Detailed explanation-3: -The arrestor pili muscles help to maintain body temperature through increasing the insulation layer of the skin when hair is raised and also by B. They cause shivering to keep you warm.

Detailed explanation-4: -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.