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somatic nervous system vs autonomic nervous system

Terms in this set (12)

SNS neurotransmitters
acetylcholine (AcH)
ANS Nuerotransmitters
acetylcholine, norepinephrine, epinephrine
SNS (somatic nervous system)
voluntary; controls skeletal muscle contractions
ANS (autonomic nervous system)
involuntary; controls internal organs
two parts: parasympathetic (rest and digest) and sympathetic (fight or flight)
ANS effectors
cardiac muscle, smooth muscle, and glands
SNS effectors
skeletal muscles
SNS responses
contraction of skeletal muscle
ANS responses
contraction/retraction of smooth muscles
decrease/increase of:
-secretions of glands
- force of contraction on cardiac muscle
SNS sensory input
special and somatic sense receptors
ANS sensory input
Mainly from interoceptors; some from somatic senses and special senses
ANS motor neuron pathway
Two motor neurons in series from CNS to effector
SNS motor neuron pathway
one motor neuron from CNS to effector
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