ANP 1106 Lecture Notes - Lecture 15: Insular Cortex, Epiglottis, Soft Palate

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Jacqueline Carnegie

Document Summary

Brain & spinal cord: peripheral nervous system (pns) Somatic nervous system nerves formed of axons that transmit efferent information to the muscles. Parasympathetic system nerves formed of axons that transmit efferent information to internal organs and afferent axons that transmit sensory information towards the cns. Or by endocytosis of neurotransmitter by the presynaptic terminal. Neurotransmitter structure: to be a neurotransmitter: must be released by presynaptic action potential must have postsynaptic receptor, classifed by chemical structure. Neurotransmitter action: depends on its receptor ionotropic (receptor is part of ion channel) Biogenic amine: serotonin, histamine the neurotransmitter at the neuromuscular joint, ionotropic (nicotinic, metabotropic (muscarinic, mostly metabotropic, metabotropic, ionotropic (gabaa, metabotropic (gabab, mostly metabotropic. Na then it"ll enter and depolarize/excite the postsynaptic neuron > excitatory postsynaptic potential (epsp) K then it"ll leave and hyperpolize/inhibit postsynatpic neuron > inhibitory postsynaptic potential (ipsp: action potential occur if membrane potential cross threshold - otherwise, leak channels will restore the membrane potential of -70mv.