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5 Cards in this Set
- Front
- Back
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What is Achetylcholine (ACH)?
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Neurotransmitter in the Peripheral and Central Nervous System
In the PNS it contracts muscles In the CNS it affects REM sleep, Circadian Rhythm and Memory Degeneration of ACH cells cause memory deficit in Alzheimer's disease 2 receptors: Nicotine is excitatory and Muscarinic is inhibitory |
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What are Neurons?
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Nerve cells
Present at birth and can regenerate 3 parts: Dendrites, Cell Body (Soma), and Axon Dendrites are like arms, they Receive information and relay it to the soma Soma PROCESSES information and pass on to axons Axons are one per neuron and divide into few branches called COLLATERALS. These are covered by Myelin Sheath which accelerates conduction |
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What are Gamma-aminobytyric Acid (GABA)?
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INHIBITORY neurotransmitter
Influences sleep, eating, seizure and anxiety disorder Low levels of GABA due to cell degeneration in the basal ganglia causes HUNTINGTONS |
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What are Endorphins?
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Neuromodulators
Acts as an analgesic Lowers sensitivity of post synaptic neurons to neurotransmitters |
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What are Glutamate?
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EXCITATORY neurotransmitters
Influences learning and long-tern memory When over-excited can cause seizures and brain damage |
