Term
| chemoreceptors (olfactory receptors) |
|
Definition
| located in the olfactory epithelium at the roof of the nasal cavity |
|
|
Term
|
Definition
| bipolar neurons; extend cilia out from epithelium into mucus layer to detect odors, axons extend through cribriform plate, form nerves and synapse at olfactory bulb. From there, impulses bypass the thalamus and go directly to the uncus (olfactory area) |
|
|
Term
| chemoreceptors (taste buds) |
|
Definition
| non-uniformly distributed throughout oral cavity (dorsal tongue, soft palate, epiglottis, pharynx, interior cheeks) |
|
|
Term
| 3 types of papillae containing taste buds |
|
Definition
foliate- located on side walls of posterior tongue
fungiform: mushroom shaped papillae located on the superior surface
circumvallate: arranged in a V formation on posterior surface |
|
|
Term
|
Definition
| composed of a globular arrangement of gustatory receptor cells and basal cells |
|
|
Term
|
Definition
| receptor cell responsible for taste sensation, developed from support cells |
|
|
Term
|
Definition
| stem cells that develop into support cells. |
|
|
Term
|
Definition
| opening exposes taste cell microvilli (gustatory hairs) to oral cavity |
|
|
Term
|
Definition
| from the gustatory receptor cell- contact with certain chemicals causing the gustatory receptor to depolarize |
|
|
Term
|
Definition
| carried to sensory cortex by facial VII (anterior 2/3 of tongue) glossopharyngeal IX (posterior tongue, and vagus X (pharyngeal area) |
|
|
