Which of the following statements is true of the skin?
(A) It feels heat, cold, pain, touch, and pressure.
(B) It becomes more elastic as a person ages.
Answer:
It is a chemical substance that is created by the body and controls body functions. It becomes thicker as a person ages.
Final answer:
The skin acts as a sense organ and a barrier, and it gathers information about the environment.
Explanation:
The skin acts as a sense organ because it contains specialized sensory nerve structures that detect touch, surface temperature, and pain. These receptors are more concentrated on the tips of the fingers, especially the Meissner corpuscle (tactile corpuscle) and the Pacinian corpuscle (lamellated corpuscle), which respond to light touch and vibration, respectively.
The skin also acts as a barrier, preventing harmful organisms from entering the body and controlling body temperature by producing sweat. It gathers information about the environment through special nerve endings that sense heat, pressure, cold, and pain. Additionally, the skin acts as a sunblock, protecting deeper layers of skin cells from damage caused by sunlight.
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