How does the body respond to an increase or decrease in temperature to maintain homeostasis?

Increase in temperature:Sweat produced from sweat glands increases energy transfer away from the body when it evaporates.Vasodilation of blood vessels close to the surface of the skin, which increases energy transfer from the body and results in heat loss.Decrease in temperature:No sweating Vasoconstriction of blood vessels close to the surface of the skin to reduce heat loss.Erector muscles connected to hair follicles contract to make the hairs stand on end. This creates an insulating layer to trap warm air.Shivering occurs when skeletal muscles contract rapidly to generate heat from respiration.

AM

Related Biology GCSE answers

All answers ▸

What are the causes of genetic mutations ?


Outline the main differences between an artery and a vein? (6 marks)


Explain why it is important to take a full course of prescribed antibiotics.


What is the structure and features of a DNA molecule