Endocrine System

Question 1

Function of the endocrine system

Answer 1

-provides a chemical system of communication within the bloodstream to regulate the activity of cells and organs in the body
-slower than the nervous system but its effects are more widespread and powerful
-chemical messengers are hormones
-hormones are released by the glands within the endocrine system to regulate many bodily functions

Question 2

Role of glands in the endocrine system

Answer 2

Gland is an organ that secretes/ releases hormones that control/regulate functions in the body.

Question 3

Pineal gland (endocrine system)

Answer 3

-secretes the hormone melatonin
-which is involved in regulating the sleep-wake cycle
-by making the person feel tired and therefore ready to sleep

Question 4

Adrenal gland (endocrine system)

Answer 4

-releases adrenaline
-which causes physiological changes involved in the fight or flight response
-eg increased blood flow to transport oxygen to the brain for rapid response planning

Question 5

Pituitary gland (endocrine system)

Answer 5

-Master gland
-secretes many different hormones that control the functions of other glands
EG ovaries and testes

Question 6

Ovaries (pituitary gland, endocrine)

Answer 6

Anterior Pituitary gland releases LH & FSH
-encourages the ovaries to release oestrogen and progesterone
-which regulate the female menstrual cycle and prepares the body for reproduction

Question 7

Testes (pituitary gland, endocrine)

Answer 7

Anterior Pituitary gland releases LH & FSH
-encourages the testicles to release testosterone
-which is involved in creating male characteristics and the production of sperm (reproduction)