The role of the nervous system in thermoregulation
Lesson 7 / 11
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I can describe the roles of receptors, the brain and effectors in controlling human body temperature.
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Temperature receptors in the skin and hypothalamus of the brain detect changes in external and blood temperature.
When temperature increases, the hypothalamus sends impulses to effectors (sweat glands, muscles in artery walls).
When temperature decreases, the hypothalamus sends impulses to effectors (hair erector muscles, artery wall muscles).
These autonomic responses work antagonistically to keep body temperature within a narrow range.
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