2. endocrine system

Question 1

what are the functions of the endocrine system

Answer 1

glands release hormones directly into the bloodstream that act as powerful messengers that control and coordinate activities throughout the body.

works in parallel with the nervous system but it is slower and more effective.

Question 2

how does the endocrine system control behaviour

Answer 2

hormones allow us to grow and go through puberty and therefore reproduce.

however, this system regulates other parts of our lives - rhythm of heart and how much we sleep.

hormones increase or decrease specific processes within the cell to change the way the cell behaves.

Question 3

what is the function of the pineal gland

Answer 3

releases melatonin.

responsible for biological rhythms - sleep/wake cycle.

Question 4

what is the function of the hypothalamus

Answer 4

stimulates and controls the release of hormones from the pituitary gland.

Question 5

what is the function of the thyroid gland

Answer 5

releases thyroxine.

responsible for regulating metabolism.

Question 6

what is the function of the pituitary gland

Answer 6

‘master gland’ because the hormones released by this gland control and release the hormones from other glands.

Question 7

what is the function of the adrenal gland (cortex)

Answer 7

releases cortisol.

stimulates the release of glucose to provide the body with energy while supressing the immune system.

Question 8

what is the function of the adrenal gland (medulla)

Answer 8

releases adrenaline and noradrenaline.

key hormone in the fight or flight response.

Question 9

what is the function of the ovaries

Answer 9

releases oestrogen.

controls regulation of female reproductive system - menstrual cycle and pregnancy.

Question 10

what is the function of the testes

Answer 10

releases testosterone.

responsible for development of male sex characteristics during puberty while also promoting muscle growth.