Thyroxine and Adrenaline
- Created by: frejwhit
- Created on: 05-06-19 17:52
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- Thyroxine and Adrenaline
- Thyroxine
- low thyroxine
- hypothalamus produces TRH
- causes pituitary to release TSH which stimulates secretion of thyroxine by the thyroid gland
- hypothalamus produces TRH
- high thyroxine
- TRH secretion is reduced
- reduces TSH and thyroxin levels
- thyroxine levels back to normal
- causes pituitary to release TSH which stimulates secretion of thyroxine by the thyroid gland
- thyroxine levels back to normal
- reduces TSH and thyroxin levels
- TRH secretion is reduced
- low thyroxine
- Adrenaline
- heart rate and blood pressure
- increases heart rate and blood pressure
- by vasoconstriction
- increase in blood flow around the body - specifically the muscles
- by vasoconstriction
- increases heart rate and blood pressure
- blood glucose
- liver converts stored glycogen back into glucose
- raises blood sugar levels
- liver converts stored glycogen back into glucose
- Lungs
- enlarges air passages of lungs
- changes metabolism to boost delivery of oxygen and glucose to brain and muscles
- heart rate and blood pressure
- Thyroxine
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