Adrenaline and thyroxine

Question 1

Where and when is adrenaline produced?

Answer 1

• Produced in the adrenal glands which sit right above the kidneys
• Produced during the “fight or flight” response: when you get scared, stressed or need to exercise
• Adrenaline prepares the body for activity

Question 2

What 4 things does adrenaline do in the body?

Answer 2

• Increase heart rate
• Increase blood flow to muscles
• Increase blood pressure
• Increase blood glucose levels: stimulates liver to break down glycogen into glucose

Question 3

Where is thryoxine produced and what is it used for?

Answer 3

• Produced in the thyroid glands (found in the neck)
• Thyroxine has lots of roles in the body (growth and development) but is mainly in charge of increasing metabollic rate

Question 4

How is thryoxine produced through the pituitary gland?

Answer 4

• The pituitary gland produces TSH (thyroid stimulating hormone)
• TSH stimulates the thyroid glands to produce thryoxine
• Thyroxine inhibts the production of TSH