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What is the neural circuitry that travels outside the spinal
cord? - ANSWER-Peripheral nervous system
Which of the following is a sensory receptor within a
muscle that detects changes in length and helps regulate
contraction? - ANSWER-Muscle spindle
,Which of the following are branches of the cell body that
act as receivers, collecting information from other
neurons? - ANSWER-Dendrites
A cascade of events, resulting in muscle contraction, is
triggered when which of the following chemical
neurotransmitters binds to receptors on the muscle? -
ANSWER-Acetylcholine
Which division of the peripheral nervous system controls
voluntary movement? - ANSWER-Somatic nervous
system
,Which type of motor unit can contract for many hours, or
even days if necessary? - ANSWER-Slow (S) of Motor
Unit
Which type of motor unit has a large motor neuron and
consists of a large bundle of type IIx muscle fibers? -
ANSWER-Fast fatigable (FF)
Voluntary movement starts in the - ANSWER-cerebral
cortex
Which of the following is the process that allows a muscle
spindle to contract at the same rate as the muscle where it
resides? - ANSWER-Alpha-gamma co-activation
, How many nerves are contained within the peripheral
nervous system, which includes all the neurons and glia
outside of the brain and spinal cord? - ANSWER-43 pairs
The muscular system includes how many muscles? -
ANSWER-Approximately 650
Which muscle fiber type are the largest, and produce the
most amount of force? - ANSWER-Type IIx
The cross-bridge cycle requires energy, which is provided
by - ANSWER-ATP hydrolysis.