Chapter Eight Flashcards
(25 cards)
When the optic nerve leaves the eyeball
Blind Spot
Receptors sensitive to various chemicals in solution.
Chemoreceptors
The pigmented nutritive layer of the eye.
Choroid
The choroid is modified to form two smooth structures. This structure is attached to the lens
Ciliary Body
A cavity of the inner ear resembling a snail shell; houses the hearing receptor
Cochlea
The transparent anterior portion of the eyeball
Cornea
Consists of a tuft of hair cells covered with a gelatinous cap
Crista Ampullaris
Sense that reports on angular or rotatory movements of the head in space
Dynamic Equilibrium
The pigmented involuntary muscle that acts as the diaphragm of the eye
Iris
Bony cavities and membranes of the inner ear that house the hearing and equilibrium receptors
Labyrinth
The elastic, doubly convex structure in the eye that focuses the light entering the eye on the retina
Lens
Within the membrane sacs of the vestibule are these receptors
Maculae
Receptors sensitive to mechanical pressures such as touch, sound etc
Mechanroceptors
Smell
Olfactory Receptors
The three bones of the middle ear
Ossicles
Specialized receptor cells that respond to light energy
Photoreceptors
Bending of light
Refraction
Light sensitive layer of the eye contains cones and rods
Retina
Firm white fibrous outer layer of the eyeball
Sclera
Adaption in response to differences or changing needs; adjustment of the eye for seeing objects at close range
Accommodation
One of the three subdivisions of the bony labyrinth.
Semicircular Canals
Balance concerned with changes in the position of the head
Static Equilibrium
Receptors for the taste on the tongue, roof of mouth, pharynx, and larynx.
Taste Buds
Eardrum
Tympanic Cavity
