__________ plays a critical role as a neurotransmitter that stimulates voluntary muscle movement directly at the junction between nerves and muscles
A) acetylcholine
B) GABA
C) dopamine
D) endorphin
Answer: A
Rationale: Acetylcholine is one of the most widespread neurotransmitters within the body, found at the junctions between nerve cells and skeletal muscles and so is very important for voluntary movement.
Psychology
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Skinner's procedures are also known as _____ _____ procedure in that the animal controls the rate at which it earns food.
Fill in the blank(s) with the appropriate word(s).
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A _____ is a specialized cell responsible for converting external stimuli into neural activity for a specific sensory system
A) sense receptor B) sensory adaptation C) selective attention D) cell sensor
Psychology