function of the endorcrine system Flashcards
1
Q
How are messages passed through the body?
A
- through the brain by neurotransmitters
- through the blood by hormones via endocrine system
2
Q
Function of the endocrine system
A
- provides chemical system of communication
- within bloodstream
- regulate activity of cells and organs in the body
- slower than nervous system
- effects more widespread and powerful
- chemical messengers are hormones
- released by glands
- regulate bodily functions
3
Q
What is a hormone?
A
- chemical messenger
- released by glands
- into blood stream
4
Q
What is a gland?
A
- an organ that secretes specific hormones
- to control/regulate functions in body
5
Q
Pineal gland
A
- secretes hormone melatonin
- regulates sleep wake cycle
- makes person feel tired so ready to sleep
6
Q
Adrenal gland
A
- secretes adrenaline
- causes physiological changes involved in fight or flight
- e.g. increased blood flow transport oxygen to brain for rapid response planning
7
Q
Pituitary gland
A
- secretes many different hormones
- control function of other glands
8
Q
Ovaries
A
- anterior pituitary gland
- releases LH and FSH
- encourage ovaries to release oestrogen and progesterone
- which regulate female menstrual cycle
- prepare body for reproduction
9
Q
Testes
A
- anterior pituitary gland
- releases LH and FSH
- encourages testicles to release testosterone
- creates male characteristics
- production of sperm
