객관식
Which of the following is NOT a component of the integumentary system?
145
views
5. Integumentary System
Introduction to the Integumentary System
객관식
What is the primary function of the muscles that make hair stand up in the integumentary system?
A
To secrete oil onto the skin surface
B
To help regulate body temperature by trapping air
C
To detect pressure and touch sensations
D
To produce sweat for cooling the body
검증된 단계별 안내1
Understand the context of the integumentary system: The integumentary system includes the skin, hair, nails, and associated glands. It plays a role in protection, temperature regulation, sensation, and more.
Identify the muscles involved: The muscles responsible for making hair stand up are called arrector pili muscles. These are small, smooth muscles attached to hair follicles.
Learn the mechanism: When the arrector pili muscles contract, they pull the hair follicle upright, causing the hair to stand up. This process is known as piloerection.
Connect the function: Piloerection traps a layer of air close to the skin, which helps insulate the body and regulate temperature, especially in cold conditions. This is a thermoregulatory response.
Eliminate incorrect options: The arrector pili muscles do not secrete oil, detect sensations, or produce sweat. Their primary function is temperature regulation by trapping air, which aligns with the correct answer.
