Special Senses Review Flashcards
type of sensation depends on the destination of what?
the nerve impulse
the conscious awareness & interpretation of sensations
perception
example of a special sense receptor would be located where?
in the head, eyes, ears, mouth
what help us determine body position, movement, and weight discrimination
proprioceptors
most sense receptors are located on or near the surface of the body are called what?
exteroceptors
type of pain receptor that is stimulated from physical or chemical tissues damage
nociceptors
mechanical stimuli cause ______ to sense when there is deformation or stretching of cells
mechanoreceptors
what receptor senses changes in temp?
thermoreceptors
______ transmit the impulses for the sense of taste and smell
chemoreceptors
perception is intrepreted in the _____ of the brain
cerebral cortex
inner most tunic of the eye
retina
2 types of visual receptors
rods & cones
part of the eye that controls the amount of light entering the eye
iris
region associated w/ the sharpest vision
fovea centralis
site of aqueous humor production
ciliary process (in ciliary body)
most refraction of light occurs in the ….
cornea
what attaches the lens to the ciliary body
zonula fibers, suspensory ligaments
cornea and lens get nutrients & oxygen from the …
aqueous humor
anterior continuation of the sclera is called the…
cornea
area that lacks photoreceptors is known as the…
optic disc
3 pigment colors that cones are stimulated by are …
blue red green
only _____ are found in the fovea centralis
cones
bending of light as it passes from 1 medium to another is called…
refraction
a person has a ________ if vision is blurred due to unequal curvatures of the lens or cornea
astigmatism
another name for ‘nearsightedness’ is…
myopia
the fluid contained within the membraneous labyrinth
endolymph
hair cells of the organ of corti rest on the ______ membrane
basilar
grains of calcium carbonate located on the maculae are called —–
otoliths
the _____, 3 smallest bones in the bady are located in the middle ear
auditory ossicles
when sound waves enter the outer ear they push against the ______ to make it vibrate
tympanic membrane (eardrum)
when the basilar membrane moves, it pulls on the auditory receptors, the ______, which are anchored to the ____ membrane
hair cells
basilar
semicircular canals contain the fluid…
endolymph
each semicircular canal has an enlarged area called the ____ contains receptor cells called ____
ampulla
cristae
the semicircular canals detect ____ equilibrium
dynamic
when the head is stationary in any position, is the endolymph moving?
no
hearing receptors are located in the ……
organ of corti
hair cells of vestibule are stimulated by the bending of the hear ____ and ___
forward & backward
organs of dynamic equilibrium are the ____ & _____
semicircular duct
cristae ampullaris
fluid contained in the osseous membrane is called…
perilymph
