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Fast vs. Slow Twitch Fibers
N/A
10
Anatomy
Undergraduate 2
09/19/2012

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Term
slow twitch fibers
Definition
take longer time to move
Term
slow twitch fibers
Definition
remain contracted 5 times longer
Term
slow twitch fibers
Definition

typically found in muscles that must contract for long periods of time

*For example, muscles used to support your body against gravity

Term
fast twitch fibers
Definition
capable of rapid movement
Term
fast twitch fibers
Definition
remain contracted for much shorter period of time
Term
fast twitch fibers
Definition
found in muscles used to meet rapid contraction requirements and then relaxes very quickly back to neutral position
Term
tongue tip
Definition
fast twitch
Term
tongue dorsum
Definition
slow twitch fiber
Term
slow twitch fibers
Definition
one motor neuron may innervate thousands
Term
fast twitch fibers
Definition
one motor neuron may innervate only 10-20
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