Endocrine System

Question 1

Endocrine system

Answer 1

An information system in the body that instructs glands to release hormones into the bloodstream.

•slower but more powerful than the nervous system
•longer lasting effects

Question 2

Gland

Answer 2

Organ in body that produces hormones.

Question 3

Hormones

Answer 3

Chemical substances that circulate in the bloodstream and only affect target organs.

Question 4

What are the steps of the fight or flight response

Answer 4

1) stress perceived in the hypothalamus

2) activates the pituitary gland to trigger activity in the autonomous nervous system

3) stress hormone adrenaline is released from the adrenal gland

4) the ANS switches to the sympathetic state

5) adrenaline causes physiological changes in the body which produces arousal needed for fight or flight

6) when threat passes, the parasympathetic branch of the ANS returns the body to its resting state