Function Of The Endocrine System And Fight Or Flight Response Flashcards Preview

Psychology 1- Biopsychology > Function Of The Endocrine System And Fight Or Flight Response > Flashcards

Flashcards in Function Of The Endocrine System And Fight Or Flight Response Deck (32):
1

What does the endocrine provide?

Provides the human body with a chemical communication

2

What does the endocrine consist of?

A network of glands

3

What are glands?

Structures/organs which release a variety of chemicals into the blood stream

4

What is the pituitary gland?

The "master gland" as the hormones that it releases control the actions of all the other glands in he body, rather than having a direct influence on the target cells of the body.

5

What are hormones?

Chemicals that are released/secreted from glands.

6

What do hormones do?

They affect and organise the body's entire physiological system, regulating a variety of bodily functions.

7

How do hormones travel?

Via the bloodstream to the other glands or organs in distant locations throughout the body to exert their effects.

8

What does the pituitary gland release?

Oxytocin
FSH
LH

9

What does the Thyroid gland release?

Thyroxine

10

What do adrenal glands release?

Adrenaline and glucocorticoids (cortisol)

11

What does the pancreas release?

Insulin

12

What do the testes release?

Testosterone

13

What do the ovaries release?

Oestrogen and progesterone

14

What does the pineal gland release?

Melatonin

15

What does the endocrine system work in tandem with?

The Nervous system

16

What is first alerted in the fight or flight response?
(Step 1)

The Hypothalamus

17

What system is activated once the hypothalamus is alerted in the fight or flight response
(Step 2)

Sympathy-medullary pathway

18

What does the sympathi-medullary pathway activate in the fight or flight response?
(Step 3)

The Sympathetic branch of the autonomic Nervous system

19

What is activated in response to the sympathetic branch being activated in the fight or flight response?
(Step 4)

Adrenal medulla

20

What does the adrenal medulla produce in the fight of flight response?
(Step 5)

Adrenaline and noradrenaline are secreted

21

What does adrenaline and not adrenaline do in the fight or flight response
(Step 6)

The hormones are detected by adrenergic receptors in target cells of the body which leads to changes such as increased heart rate, oxygen and glucose supply to the brain and muscles for instant energy, and suppression of non-emergency processes

22

How do pupils react to increased levels of adrenaline?

They dilate to increase awareness of external stimuli and thus the ability to respond to them

23

How does the heart react to increased levels of adrenaline

The heart rate increases to speed up blood circulation allowing oxygen to be carried t the muscles more quickly

24

How does the spleen react to increased levels of adrenaline

It releases res blood cells allowing the blood to carry more oxygen

25

How does sugar metabolism react to increased adrenaline

It speeds up to provide an instant supply of energy

26

How do bronchial tubes react to an increase in adrenaline

They dilate to accelerate airflow so more oxygen is taken int the lungs; muscles require oxygen to work efficiently

27

How does sweat contribute to the body when in the fight or flight response

It cools down the body

28

How is the bladder effected by an increase in adrenaline

Emptying the bladder is inhibited

29

How do neurotransmitters react to an increase in adrenaline

Endorphins are produced which block immediate feelings of pain

30

Why are additional blood platelets produced when adrenaline increases?

It assists clotting and so prepares the body to repair potential physical damage

31

How do they intestines react to an increase in adrenaline?

Digestion of food is interrupted as blood goes to muscles

32

Explain the effects of adrenaline on the heart

Adrenaline is release from the bloodstream and binds to adrenergic receptors on the membranes of cardiac cells, causing physiological changes in the speed and force of which the heart contracts

Adrenaline is release from the bloodstream and binds to the adrenergic receptors on the membranes of cardiac cells, causing physiological changes in the speed and force of which the heart contracts