HomeoStasis: Negative Feedback.

Question 1

When is adrenaline produced?

Answer 1

• Times of stress and fear.

- Adrenaline is released into the blood.

Question 2

What are the effects of adrenaline?

Answer 2

• Increased heart rate:
• More Oxygen + Glucose are delivered in the blood to brain and muscles, needed for aerobic respiration.
• Prepares body to fight or run away.
• ## “Fight or Flight”.

Question 3

What is the thyroid glands?

Answer 3

• Found at the base of the neck.
• ## Releases the hormone Thyroxine.

Question 4

What are the 2 main effects of Thryoxine?

Answer 4

• Stimulates the body’s basal metabolic rate.
• Makes the body’s chemical reactions take place at a faster rate.
• ## Plays an important role in growth and development.

Question 5

What is negative feedback?

Answer 5

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