Endocrine System and ANS COPY

Question 1

What happens in a fight or flight response?

Answer 1

• stressor perceived
• hypothalamus activates pituitary gland
• triggers activity in the sympathetic branch of the autonomic nervous system
• changes parasympathetic state (resting state) to sympathetic state (physiologically aroused)

Question 2

What is adrenalines role in the fight or flight response?

Answer 2

• released from adrenal medulla into bloodstream
• triggers physiological changes in the body
• creates physiological arousal necessary for fight or flight

Question 3

How is the fight or flight response an immediate and automatic response?

Answer 3

as soon as the threat is detected everything happens in an instant

Question 4

What is parasympathetic action?

Answer 4

• once the threat passes the parasympathetic nervous system returns the body to a resting state
• reduces activities of the body that were increased by the sympathetic nervous system