b3.2.2- negative feedback

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5 Terms

1
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what is the negative feedback loop 5

  1. conditions in body change from set point

  2. change detected by receptor

  3. corrective measure turned on

  4. conditions return to set point

  5. corrective mechanisms switched off

2
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what is adrenaline

prepares body for intensive action by increasing energy to muscles.

3
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what does adrenaline do 4

  1. increase breathing/heart rate

  2. direct blood from areas like digestive system to working muscles

  3. more gas exchange as airways dilate

  4. increase respiration in muscles to increase ATP production (energy)

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why does hypothalamus do when the body requires energy

releases TSH (Thyroid Stimulating Hormone) which then stimulates thyroid gland that releases thyroxine. Thyroxine increases cell metabolic rate which increases energy

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what does thyroxine do

controls bodies metabolic rate