gustation
sense of taste
chemoreceptor
a sensory receptor that detects chemical stimuli
photoreceptor
a sensory receptor that detects light stimuli
taste bud
a small structure on the upper surface of the tongue that contains chemoreceptors
papillae (tongue)
elevated areas of the tongue that contain taste buds
olfactory bulb
an enlargement of the olfactory nerve that senses smell
conjunctiva
a thin, transparent epithelium that covers the eye
lacrimal gland
gland that produces tears
retina
the inside layer located at the back of the eye that contains photoreceptors
sclera
the tough outermost layer of the eye
cornea
the clear covering at the front surface of the eye that permits light to enter
choroid
a layer of blood vessels that lines the inner surface of the sclena
ciliary body
part of the eye that contains a focusing muscle and connective tissue
lens
the transparent structure inside the eye that focuses light rays for clear vision
cones and rodes
photoreceptors sensitive to bright color/dim color
auricle (pinna)
the external portion of the ear
external auditory canal
a bony structure that leads from the outer ear to the middle ear
tympanic membrane
a thin epithelial layer at the end of the auditory canal
ossicles (malleus, incus, stapes)
the three tiny bones in the middle ear (first bone, second bone, third bone)
eustachian tube
the tube connecting the middle ear to the throat
cochlea
a coiled organ in the inner ear that converts vibrations into neuron impulses that are sent to the brain
organ of corti
the part of the inner ear that responds to different sounds
cerebrovascular disease
disorders of blood vessels in the brain