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20 Cards in this Set
- Front
- Back
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What does the Central Nervous System (CNS) comprise of? |
Spinal cord and Brain |
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What does the Peripheral Nervous System (PNS) comprise of? |
Nerves |
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Function of the cerebrum |
Responsiblefor memory, reasoning and imagination |
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Function of the cerebellum |
Controlsbalance and muscular co-ordination |
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Function of Medulla |
Controls heart rate and breathing ( things that do not require a concious thought) |
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What are three type of neurons? |
Motor, sensory and relay |
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What order will the nerve impulses travel through the neurons? |
Sensory to relay to motor |
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What is a reflex response? |
is avery rapid response made by the nervous system withoutprocessing theinformation through the brain. |
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What is the structure which nerve impulses transmit across? |
Synapse |
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What is the chemical called that carries the nerve impulse? |
Neurotransmitters |
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Describe the transmission of a nerve impulse. |
Thenerve impulse stimulates little ‘sacs’ called vesicles in the axon endings of one neurone tomove to the surface, fuse with the membrane and secrete the chemical into thesynaptic space.•Itcombines with receptors on the dendrite of the next neurone. |
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What are hormones? |
They are chemical messengers |
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List 4 features of hormones |
-They travel in the blood to their destination. -They have specific shapes to bind to specific receptors found on their target cells. -They are made of protein -They can have long term effects on the organism. |
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Where are hormones released from? |
Endocrine glands. |
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What is the hormone needed to return blood sugar levels back to normal after you have eaten or drank a sugary drink? |
Insulin |
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What does excess sugar get stored as in the body? |
Glycogen |
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Where does excess sugar get stored? |
Liver |
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What hormone is released when sugar levels are lower than normal (usually between meals or during sleep)? |
Glucagon |
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What organ releases the hormones required to maintain normal glucose levels in the blood? |
Pancreas. |
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What is the condition called when a person is unable to control their blood glucose levels? |
Diabetes |
