Physio Review Notes

Physio Review Notes - Physio Review Notes Nervous System...

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Physio Review Notes Nervous System Lecture 1 2 types of neurons: cholinergic: release acetylcholine adregeneric: release norepeniphrine 2 types of cholinergic receptors: muscarinic: G protein coupled nicotinic (much faster ): ion channel coupled Adrenengeneric receptors: G protein coupled Parasympathetic Nervous System Prechlingeneric neuron: release acetylcholine Postcholinegeneric neuron has nicotinic at head and relsease Ach Muscarininc cholingeneric receptor Sympatheric Nervous System 1) Preganglionic neuron => release Ach 2) Postganglionic => contains nicotinic cholingeric receptor (adrenergic) release Norepinphrine Same as above except ganglion is collateral ganglion Type 2: Precolinergic => releases ach, located in adrenal gland, terminates at adrenal medulla (release epinephrine) also has adergenic receptor Somatic Nercous System One long neuron, terminates at skeletal muscle, release ach, nicotinc cholinergic receptor Lecture 2
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**Figure 12.20 Most imp vagus nerve => regulates heart Hormonal control: epinephrine : binds to adrenergic receptor, secreted by the adrenal gland, has effect of increasing AP frequency at spinal atrium node, causes increase in heart
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Physio Review Notes - Physio Review Notes Nervous System...

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