major nerve pathways
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Last updated 7:58 PM on 3/23/23
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22 Terms
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nociceptor
start receptor involved in lateral spinothalamic pathway
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neurons involved in the lateral spinothalamic pathway
primary sensory neuron, secondary sensory neuron, and tertiary sensory neuron
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which spinal root is utilized by the lateral spinothalamic pathway
dorsal root
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what area of the cerebrum receives information from lateral spinothalamic pathway for processing
thalamus
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starting point of somatic motor pathway
primary motor cortex in frontal lobe
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ending point of somatic motor pathway
skeletal muscle
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neurons involved in somatic motor pathway
upper motor neurons and lower motor neurons
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neurotransmitter released onto target by final neuron in somatic motor pathway
ACh (acetycholine)
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neurotransmitter that a cholinergic neuron releases
ACh (acetycholine)
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neurotransmitter that a adrenergic neuron releases
NE (norepinephrine)
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2 cholinergic receptors
nicotinic and muscarinic receptors
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2 adrenergic receptors
alpha and beta receptors
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starting points of parasympathetic pathways
spinal cord and brain stem
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ending points of parasympathetic pathways
smooth muscle, cardiac muscle, and glands
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starting point of sympathetic pathway
spinal cord
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ending points of sympathetic pathways
smooth muscle, cardiac muscle, and glands
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neurons involved in parasympathetic pathway
parasympathetic preganglionic neuron (cholinergic) and parasympathetic postganglionic neuron (cholinergic)
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neurons involved in sympathetic pathway
sympathetic preganglionic neuron (cholinergic) and sympathetic postganglionic neuron (adrenergic)
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synaptic activity between preganglionic and postganglionic neurons
parasympathetic and sympathetic preganglionic neurons releases ACh which binds with the nicotinic receptor
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synaptic activity between postganglionic neurons and the heart
* parasympathetic postganglion neuron releases ACh which binds to the muscarinic receptor of the heart
* sympathetic postganglion neuron releases NE which binds to the beta receptor of the heart
* sympathetic postganglion neuron releases NE which binds to the beta receptor of the heart
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parasympathetic system response to neurotransmitter
heart rate slows down
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sympathetic system response to neurotransmitter
heart rate increases