The Endocrine System

Question 1

What is the Endocrine system

Answer 1

A network of gland that communicate through releasing hormones into the blood stream

Question 2

Name two glands

Answer 2

• adrenal gland
• pituitary gland

Question 3

The role of the adrenal gland

Answer 3

• to release hormones in response to stress
• such as adrenaline and cortisol

Question 4

The role of the pituitary gland

Answer 4

• controls the release of hormones from all other glands in the body

Question 5

Where is the adrenal gland found

Answer 5

In the kidneys

Question 6

Where is the pituitary gland found

Answer 6

The brain

Question 7

7 bodily reactions caused by the fight or flight response

Answer 7

1- pupil dilation
2- decreased salivation
3- increased muscle tension
4- increased sweat
5- increased breathing rate
6- increased heart rate
7- decreased food digestion

Question 8

What does the fight or slight response include?

Answer 8

• endocrine system
• sympathetic branch of the autonomous nervous system which prepares us for action

Question 9

What is the hypothalamus

Answer 9

A cluster of neurons that sits above the pituitary gland

Question 10

What does the the hypothalamus do

Answer 10

Links the nervous system to the endocrine system

Question 11

What does the fight or flight response include

Answer 11

• the sympathetic branch of the autonomous nervous system
• the endocrine system

Question 12

Explain how the fight or flight response happens

Answer 12

1- hypothalamus gets signals from the CNS and PNS about potential threats
2- if there is a threat the hypothalamus sends electric signals to the sympathetic nervous system
3- this activates the adrenal gland to release adrenaline
4- this causes the bodily actions of the fight or flight response

Question 13

What are the two types of the fight or flight response

Answer 13

1- fast response
2- slow response

Question 14

Outline the fast fight or flight response

Answer 14

• adrenaline is released and kicks in immediately

Question 15

Outline the slow fight or flight response

Answer 15

• releases the hormone cortisol, kicks in slower to deal with longer situations

Question 16

What happens when the stress is no longer present

Answer 16

The hypothalamus activates the parasympathetic nervous system to decrease bodily activities
- this is called the rest and digest response

Question 17

2 limitations of the fight or flight response research

Answer 17

• lacks population validity as most research was done on males
• ignores individual differences for example some people are prone to freezing

Question 18

Explain the usefulness of the fight or flight response

Answer 18

+ excellent way to deal with danger we would have experienced as cave men
- lots of these instincts are less necessary now and maybe less severe