Where is adrenaline released from?

Adrenaline is released from the adrenal glands.

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When is adrenaline released?

Adrenaline is released during the 'fight or flight' response, when you get scared, stressed, or need to exercise. It prepares the body for activity.

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What 4 effects does adrenaline have on the body?

  1. Increases heart rate.
  2. Increases blood pressure.
  3. Increases blood flow to muscles.
  4. Increases blood glucose concentrations.

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How does adrenaline increase blood glucose levels?

Adrenaline stimulates liver cells to break glycogen down into glucose and release it into the bloodstream.

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Where is thyroxine released from?

Thyroxine is released from the thyroid gland.

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Where is the thyroid gland?

In the neck.

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What does thyroxine do?

Thyroxine has lots of roles in the body, including growth and development, but the main role is to increase your metabolic rate (the rate at which chemical reactions are taking place).

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Which hormone stimulates the thyroid gland to release thyroxine?

Thyroid stimulating hormone (TSH). 

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Which gland releases thyroid stimulating hormone (TSH)?

The pituitary gland.

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What will cause the pituitary gland to release thyroid stimulating hormone?

Low levels of thyroxine cause the pituitary gland to release TSH.

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