Adrenaline and thyroxine

Question 1

Where is adrenaline produced?

Answer 1

Adrenal glands, which are above the kidneys

Question 2

When is adrenaline released?

Answer 2

During ‘fight or flight’ response

Question 3

Fight or flight occurs when:

Answer 3

Scared
Stressed
Need to exercise

Question 4

What does adrenaline do?

Answer 4

1. Increases heart rate
2. Increases blood pressure
3. Increases blood flow to muscles
4. Increases blood sugar levels by stimulating the liver to break down glycogen into glucose

Question 5

Where is Thyroxine produced?

Answer 5

Thyroid gland, which is in the neck

Question 6

Main role of Thyroxine

Answer 6

Increasing metabolic rate

Question 7

Relationship of pituitary gland, TSH and Thyroxine

Answer 7

Pituitary gland produces TSH, which stimulates the Thyroid gland to produce Thyroxine.
Thyroxine then inhibits the production of TSH from the pituitary gland.

Question 8

Low Thyroxine level response

Answer 8

Pituitary gland releases TSH, stimulating thyroid gland to release Thyroxine

Question 9

High Thyroxine level response

Answer 9

Thyroxine inhibits the pituitary gland from producing TSH. Less TSH means less release of Thyroxine