Bio 253 Hondros Test 2 -2023Job of Auditory (Eustachian) tube - ANSWERmaintains equal pressure on both sides oftympanic membraneconnects middle ear to throatAre cranial/spinal nerves PNS or CNS? - ANSWERPNSTunic layers of Eye - ANSWERFibrous outer layer-sclera and corneaVascula middle layer-pigmented, cont. blood vesselsNervous inner layer-retina, rods and conesWhat are the ear stones? - ANSWEROtoliths-help with balance and equilibriumReceptors activated by specific action - ANSWERThermoreceptorsNociceptorsMechanoreceptorsCranial nerves that control eye movement - ANSWEROculomotorTrochlearAbducensFovea Centralis - ANSWERPart of Retina that contains the highest amount ofphotoreceptorsOptic Disc - ANSWEROptic nerve exits through herePt of retina the has NO photoreceptorswhere blood vessels enter eyeSound transmission in ear - ANSWERPinna (auricle)--external auditory canal--tympanicmembrane (vibrates back and forth; pushes on the ossicles)--malleolus, incus, stapes--fluid inthe inner ear becomes wavy and stimulates mechanoreceptors (hair cells) in the cochleaWhich receptors never experience adaptation? - ANSWERNociceptors--PainReceptors controlled by being stretched or pushed on - ANSWERMechanoreceptorsPreview Mode
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