Nerves and Hormones

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What does the sensory neuron do?
It sends impulses from receptors to the CNS.
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What does the relay neuron do?
It links sensory neurons and motor neurons.
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What does the motor neuron do?
It sends impulses from the CNS to effectors.
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What is a neuron?
A cell that transmits electrical impulses in the nervous system.
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What is a stimulus?
Anything your body is sensitive to.
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In what order do impulses pass through a reflex arc?
Receptor, sensory neuron, relay neuron, motor neuron, effector
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What are hormones?
Chemicals that help control bodily functions which are produced in glands.
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What four factors does homeostasis control?
Water content; ion content; blood glucose levels; temperature.
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Give two advantages of contraception.
Allows planning of pregnancy; reduces family sizes which leads to reduced poverty
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Give two advantages of fertility drugs
Helps infertile couples; people have fewer children due to the cost; freedom for women
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Give two disadvantages of contraception
Causes side effects; ethical/religious objections
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Give two disadvantages of fertility drugs
Expensive; may cause multiple births; extra embryos are stored or destroyed
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Other cards in this set

Card 2

Front

What does the relay neuron do?

Back

It links sensory neurons and motor neurons.

Card 3

Front

What does the motor neuron do?

Back

Preview of the front of card 3

Card 4

Front

What is a neuron?

Back

Preview of the front of card 4

Card 5

Front

What is a stimulus?

Back

Preview of the front of card 5
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