- Nerve = a bunch of neurones,
- Synapse = gap between the end of one neurone and the effector or the start of another neurone
- Axon = the end of a neurone
Internal conditions controlled by body:
Water content --- leaves in sweat, or via kidneys, or in breath.
Ion content --- leaves in sweat or via kidneys (as urine)
Body temperature --- Enzymes work best at certain temp which must be mantained Blood sugar --- Provide cells with constant supply of energy.
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Pituitary glands - Produce FSH & LH
Ovaries - Produce oestrogen and progesterone
FSH (follicle stimulating hormone) --> egg mature + oestrogen released.
Oestrogen --> thickens uterus lining + inhibits FSH
LH (luteinizing hormone) --> egg released + stimulates progesterone
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