The Role Of Skin In Temperature Regulation
“What is the role of skin in temperature regulation? A detailed question and answers guide”
Explain role of skin in temperature regulation.
Answer:
- Skin helps in temperature regulation by maintain balance between heat production and heat loss.
1. Heat production:
- By following mechanism heat is produced and thus heat is gain in the body.
Shivering:
- Exposure to cold causes rapid involuntary muscular contractions called shivering.
- During this enormous heat is produced.
Cutaneous vasoconstriction:
- When cutaneous blood vessels are cooled, they become more sensitive to catecholamines and the arterioles and venules constrict.
- This direct blood away from the skin into deeper veins.
- Therefore, heat is transferred from the warm arterial blood to the cold venous blood coming from the extremities.
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2. Heat loss:
- Heat loss occurs in skin by.
Increased sweating:
- This, in turn, decreases body temperature.
Cutaneous vasodilation:
- When the sympathetic centers are inhibited, there is vasodilation.
- This increases blood flow through skin causing increased sweating.
- This, in turn, causes heat loss.
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