Term
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Definition
| anterior 2/3 - facial nerve (VII)....posterior 1/3 - glossopharyngeal nerve (IX)....pharynx/epiglottis/etc - X |
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Term
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Definition
| Salt (influx of Na+ ions depolarizes cell)...sour/acids (influx of H+ ions depolarizes cell)...bitter (K+ channels blocked, cell depolarized)...umami (amino acids bind to calcium and sodium channels and influx of cations depolarizes cell) |
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Term
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Definition
| sweet (activation of adenylyl cyclase = increased cAMP, activation of PKA, K+ channels closed and cell depolarized)....bittter (activation of phosophlipase C, convert PIP2 -> IP3 and DAG = release of Calcium) |
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Term
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Definition
| loss of oflactory perception |
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Term
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Definition
| contains several hundred taste buds with 50-150 taste cells each |
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Term
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Definition
| lowest concentration of chemical that evokes a sensation of taste |
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Term
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Definition
| process by which an environmental stimulus causes an electrical response in a sensory receptor cell |
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Term
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Definition
| responses of a large number of broadly tuned neurons are used to specify the properties of a particular stimulus |
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Term
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Definition
| chemicals used in communication |
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Term
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Definition
| small, thin sheet of cells high up in nasal cavity that contains olfactory receptor cells, supporting cells (produce mucus) and basal cells (source of new receptor cells) |
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Term
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Definition
| piece of bone between nasal cavity and brain |
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Term
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Definition
| cranial nerve 1, axons from olfactory epithelium |
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Term
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Definition
| input layer of olfactory bulb, within each glomerulus aer the endings of about 25,000 olfactory axons - synapse on aout 100 second order neurons. each glomerulus receives input from receptor cells of only one type |
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Term
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Definition
| medial bank of rhinal sulcus which is near the lateral ventricals and the hippocampus |
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Term
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Definition
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Term
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Definition
| reigon of cerebral cortex connected to the olfactory bulb and separated from the neocortex by the rhinal fissure |
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