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Senses Chapter 9

Quiz 3

Meissner Fine tough and low frequency vibration
Bulbous (ruffini) corpuscle Touch and pressure
Free nerve ending Naked nerve ending. Pain, crude touch, temperature, itch, tickle
Encapsulated nerve ending Caped
Lamellar (pacini) corpuscle Pressure and high frequency vibration
Bullboid corpuscle (Krause and bulbs) Touch
Golgi tendon organs & Muscle spindles Proprioception
Proprioceptors Postion of muscles
Mechanoreceptors Movement of body
Photoreceptors Light; eye
Chemoreceptors Chemical; internal environment
Pain receptor Injury
Thermoreceptor Temperature change
Function of nerves Detect particular stimulus, convert stimulus to nerve impulse, perceived as sensation in CNS
Sclera White of eye, tough to protect
Choroid Front part made of ciliary muscle and iris
Pupil An actual hole in eye
Ciliary muscle Contract or constrict pupil
Retina Night and day vision
Retina; Rods Dark, at night
Retina; Cones Light and color, day
Conjunctiva Covers sclera, lines eye ball or eyelid
Conjunctivitis Pink eye
Lens Takes light rays and focuses on retina
Aqueous humor Water like fluid, forms in front of lens, anterior lens
Vitreous humor Posterior of lens, "jelly-like" liquid. Shape eyeball
Cataracts Lens of eye gets hard and loses elasticity. Looks cloudy, milky, a progressive progress
Glaucoma Increase pressure in eye. If drainage is blocked and can lead to blindness. Aqueous humor
Myopia Nearsightedness
Hyperopia Farsightedness
20/20 vision The normal vision
Presbyopia "old sightedness". Farsightedness aka hyperopia, ciliary muscles loses elasticity
Ear receptors Mechanioreceptor
ear Balance, equilibrium
Ear ossicles Malleus hammer, incus pound on, stapes straps
External ear Auricle (pinna) top of ear
Ceremonious gland secrete wax
Tympanic membrane ear drum
Tympanic membrane Vibrates to hear
Auditory tube Station tube, connect middle ear to throat
Ottis media Infection of the middle ear
Cristae ampularis Receptors for balance in semicircular canal
Specialized hair cells Stimulate movement of sound
Corti Specialized for hearing
Bone deafness Disturbance in bones
Nerve deafness Auditory or acoustic nerve get "tire" don't work as well
Presbycuses Old age, loss of hearing
Chemoreceptors Found on taste buds
Primary taste sensations Sweet, sour, bitter, salty
Metallic & Unami(meat) New sense
Gustatory and olfactory sends or creates taste sensations
Gustatory Taste
Olfactory Nose
Smell (Olfactory) receptors Chemoreceptors upper part of nasal cavity
In order to smell The smell has to be dissolved
Association of smell Stored
Created by: kpielechowski