Studied by 1 person
Emmetropia eye
________ focuses images correctly on the retina.
Impulses
________ are transmitted via the olfactory filaments to the olfactory nerve (I)
Lens
________ divides the eye into two chambers.
Menieres
________ affects inner ear and causes progressive deafness and perhaps vertigo (sensation of spinning)
Iris
________- regulates amount of light entering eye.
Choroid
________ is a blood- rich nutritive layer that contains a pigment (prevents light from scattering) & is modified anteriorly into two smooth muscle structures.
Synapse
________ with neurons in the thalamus- (relaying of sensory signals, including motor signals, to the cerebral cortex, and the regulation of consciousness, sleep, and alertness)
newborn infant
The ________ can hear sounds, but initial responses are reflexive.
Lens
________ divides the eye into two chambers.
Accommodation the lens
________ must change shape to focus on closer objects (less than 20 feet away)
Equalizes pressure
________ in the middle ear cavity so the eardrum can vibrate.
Maternal infections
________ during the first 5 or 6 weeks of pregnancy may cause visual abnormalities as well as sensorineural deafness in the developing child.
Taste
________ and smell are most acute at birth and decrease in sensitivity after age 40 as the number of olfactory and gustatory receptors decreases.
Fovea centralis
________- lateral to blind spot.
Hair cells
________ are stimulated, impulse travels vestibular n. to the cerebellum.
Humors
________ are fluids that fill the interior of the eyeball.
poor visual acuity
The infant has ________ (is farsighted) and lacks color vision and depth perception at birth.
Tarsal
________ glands produce an oily secretion that lubricates the eye.
Presbycusis type of sensorineural deafness
________ that may result from otosclerosis (ear ossicles fuse)
Pressure waves
________ cause vibrations in the basilar membrane in the organ of Corti.
Gel
________- like tectorial membrane is capable of bending hair cells.
Sound
________ is amplified by the ossicles.
Smell
________ can differentiate a wider range of chemicals.
Convergence
________: reflexive movement of the eyes medially when we focus on a close object.
cornea
Light is bent, or refracted, by the ________, aqueous humor, lens, and vitreous humor.
Membranous labyrinth
________ is suspended in perilymph and contains endolymph.
Taste buds
________ are replaced frequently by basal cells.
External ear
________ is involved only in collecting sound waves.
Sweet receptors
________ respond to sugars, saccharine, some amino acids.
Presbyopia old vision results
________ from decreasing lens elasticity that accompanies aging.
