Summary: Nerves And Hormones
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1 Nerves and Hormones
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What does the nervous system respond to?
Light, sound, changes in position, taste, smell, touch -
What are the stimuli that ears respond to?
Sound and changes in position -
State the reflex action pathway that occurs when you hurt your finger
Receptor cells respond to the stimuli, an impulse is created, the impulse travels along a sensory neurone, impulse passes across a synapse to a relay neurone, impulse passes across another synapse to a motor neurone, the impulse is carried to the effector muscle and the finger is pulled back -
How is information passed across a synapse?
Through chemicals -
How are ion levels moderated?
Sweat, urine -
How is temperature moderated?
Sweat, hairs -
What does the contraceptive pill do?
It contains oestrogen, which inhibits the production of FSH, so no eggs will mature -
What is the combined pill?
A contraceptive pill that also contains progesterone -
Which contraceptive pill is more effective?
The combined pill -
How can infertility be treated with hormones?
if infertility is due to low FSH levels then FSH can be injected
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