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Brain Bee: The Neuron
n/a
6
Medical
Undergraduate 1
12/04/2009

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Cards

Term
neuron
Definition
a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells; basic working unit of the brain
Term
# of neurons in the brain
Definition
1B to 100B depending on the species
Term
parts of a neuron
Definition
cell body
dendrites
axon
Term
dendrites
Definition
extend from cell body and receive messages from other neurons
Term
acetylcholine - functions
Definition
causes voluntary muscles to retract
controls heartbeat
also serves as a transmitter in many parts of the brain
Term
acetylcholine - function
Definition
released by neurons connected to voluntary muscles; opens sodium channels and causes muscle to contract; broken down by acetylcholinesterase and resynthesized in nerve terminal
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