Nervous System and The Senses Flashcards
The limpid watery fluid that fills the space between the cornea and the crystalline lens in the eye.
Aqueous humor
The projecting shell-like structure on the side of the head constituting, with the external acoustic meatus, the external ear. Also called pinna .
Auricle
An abnormality of the eye, characterized by opacity of the lens.
Cataract
A receptor stimulated by chemical means.
Chemoreceptor
The dark-brown vascular coat of the eye between the sclera and the retina.
Choroid
A spiral-shaped cavity of the inner ear and the main organ of hearing.
Cochlea
The mucous membrane that lines the exposed portion of the eyeball and inner surface of the eyelids.
Conjunctiva
The transparent anterior part of the external coat of the eye covering the iris and the pupil and continuous with the sclera.
Cornea
Is the sensory organ of rotation located in the semicircular canal of the inner ear.
Crista ampullaris
The fluid contained within the membranous labyrinth of the ear.
Endolymph
Any of a group of eye diseases characterized by abnormally high intraocular fluid pressure, damaged optic disk, hardening of the eyeball, and partial to complete loss of vision.
Glaucoma
An epithelial cell in a taste bud that activates sensory fibers of the facial nerve or the glossopharyngeal nerve or the vagus nerve
Gustatory cells
The sensation of movement or strain in muscles, tendons, and joints; muscle sense.
Kinesthesia
The colored, muscular ring around the pupil of the eye located between the cornea and lens. Regulates the amount of light reaching the retina.
Iris
Either of two tear-secreting glands situated in the upper outer angle of the orbit.
Lacrimal gland
A transparent, biconvex body of the eye between the iris and the vitreous humor.
Lens
Any of the sense organs that respond to vibration, stretching, pressure, or other mechanical stimuli.
Mechanoreceptor
A visual defect in which distant objects appear blurred, also known as nearsightedness; shortsightedness.
Myopia
Either one of the third pair of cranial nerves, consisting chiefly of motor fibers that innervate most of the muscles of the eyeball.
Oculomotor nerve
The space around the eyes.
Ophthalmic region
A structure in the cochlea, consisting of hair cells that serve as receptors for auditory stimuli.
Organ of Corti
A small bone, especially one of the three bones of the middle ear
Ossicles
Inflammation of the middle ear, characterized by pain, dizziness, and impaired hearing.
Otitis media
Any small, nipplelike process or projection.
Papillae
The fluid between the bony and membranous labyrinths of the ear.
Perilymph
A receptor stimulated by light.
Photoreceptor
Farsightedness due to ciliary muscle weakness and loss of elasticity in the crystalline lens.
Presbyopia
A receptor located in subcutaneous tissues, as muscles, tendons, and joints, that responds to stimuli produced within the body.
Proprioceptors
The apparently black circular opening in the center of the iris of the eye, through which light passes to the retina
Pupil
The delicate multilayered light-sensitive membrane lining the inner posterior chamber of the eyeball
Retina
A dense, white, fibrous membrane that, with the cornea, forms the external covering of the eyeball.
Sclera
Any of the three curved tubular canals in the labyrinth of the ear, associated with the sense of equilibrium.
Semicircular canals
Also called: tympanum , Nontechnical name: eardrum the thin translucent oval membrane separating the external ear from the middle ear.
Tympanic membrane
The transparent gelatinous substance filling the eyeball behind the crystalline lens.
Vitreous humor
A combining form meaning auricle.
aur/o
Combining form. indicating the eye oculomotor
ocul/o
A combining form meaning “eye,”
ophthalm/o
A combining form meaning “ear,”
ot/o
A combining form meaning “Retina”
retin/o
A combining form meaning eardrum ( tympanic membrane).
tympan/o
