7.2 - **Higher Only** Adrenaline and the Fight-or-Flight response

Question 1

What is adrenaline?

Answer 1

Adrenaline is a hormone produced by the adrenal glands to prepare the body for a flight or flight response.

Question 2

What is the flight-or-flight response?

Answer 2

The flight-or-flight response is the body’s reaction to a dangerous situation.

Question 3

What is an example of a situation that triggers the flight-or-flight response?

Answer 3

Historically, this response would have been triggered by being confronted by a dangerous animal.

Question 4

What is one aspect of the fight or flight response?

Answer 4

Increased heart rate: this allows oxygen to reach the muscles more quickly.

Question 5

What is another aspect of the fight or flight response?

Answer 5

Increased blood pressure: this helps in delivering oxygen more efficiently.

Question 6

What happens to blood flow to muscles during the fight or flight response?

Answer 6

Blood vessels leading to muscles dilate to allow more blood to reach them.

Question 7

What is the effect of increased blood flow to muscles?

Answer 7

It allows muscles to contract with greater strength and more quickly.

Question 8

What happens to blood sugar levels during the fight or flight response?

Answer 8

Increased blood sugar levels occur as the liver breaks down glycogen into glucose.

Question 9

What is glycogen?

Answer 9

Glycogen is a storage molecule that the liver breaks down into glucose for muscle use.