endocrine system

Question 1

what is the endocrine system?

Answer 1

Works alongside nervous system to control vital functions in the body.

Question 2

what are glands?

Answer 2

Organs in body that make hormones

Question 3

what are 3 examples of glands and functions?

Answer 3

1. thryoid gland releases thyroxine whichregulates metabolism and heart rate
2. testes release testosterone which develops male characteristics in puberty.
3. ovaries release oestrogen which regulates female reproductive system and menstrual cycle

Question 4

what are hormones?

Answer 4

Chemical substances in bloodstream that target specific organs

Question 5

what is the pituitary gland?

Answer 5

The ‘master gland’ in the brain controls the release of all other hormones in the body.

Question 6

what is the fight or flight response?

Answer 6

The body becomes physiologically aroused in response to stress, to fight an aggressor or flee.

Question 7

what are the 5 steps of fight or flight response?

Answer 7

1. hypothalamus triggers activity in the ANS
2. ANS changes from resting parasympathetic state to aroused sympathetic state.
3. Adrenaline released from adrenal medulla
4. Adrenaline causes physiological changes in target organs eg. higher heart rate and breathing rate
5. once threat passes, parasympathetic state returns