THE EAR
THE EXTERNAL PART OF THE EAR IN HUMANS & OTHER MAMMALS THAT COLLECTS SOUND VIBRATIONS?
THE AURICLE OR PINNA
A TINY BONE THAT PASSES VIBRATIONS FROM THE HAMMER TO THE STIRRUP THEN TO THE COCHLEA
ANVIL
THE WHITE OUTER LAYER OF THE EYEBALL.
SCLERA
PHOTORECEPTORS IN THE RETINA THAT RESPOND TO VISION AT LOW LIGHT LEVELS
RODS
A FLAT, COLORED, RING-SHAPED MEMBRANE BEHIND THE CORNEA OF THE EYE, WITH AN ADJUSTABLE CIRCULAR OPENING (PUPIL) IN THE CENTER THAT CONTROLS THE AMOUNT OF LIGHT THAT ENETERS THE EYE
IRIS
THE NARROW PASSAGEWAY FROM THE OUTER EAR TO THE EARDRUM THAT CARRIES SOUND VIBRATIONS?
AUDITORY CANAL
THE SPIRAL CAVITY OF THE INNER EAR WHICH PRODUCES NERVE IMPULSES IN RESPONSE TO SOUND VIBRATIONS
COCHLEA
THE PIGMENTED VASCULAR LAYER OF THE EYEBALL BETWEEN THE RETINA AND THE SCLERA
CHOROID
PHOTORECEPTORS IN THE EYE THAT MEDIATE COLOR VISION
CONES
THE OPENING OF THE IRIS. IT OPENS AND CLOSES AND DETERMINES HOW MUCH LIGHT IS SET LET INTO THE EYE.
PUPIL
THE EARDRUM THAT VIBRATES WITH SOUND WAVES
TYMPANUM
THE 3 FLUID-FILLED BONY CHANNELS IN THE INNER EAR. THEY PROVIDE INFORMATION TO THE BRAIN TO HELP MAINTAIN BALANCE
SEMICIRCULAR CANALS
AN OVAL YELLOWISH AREA SURROUNDING THE FOVEA NEAR THE CENTER OF THE RETINA IN THE EYE
MACULA
THE FIRST LAYER IN THE EYE THAT LIGHT STRIKES. IT IS CLEAR MOIST, AND SALTY. ITS PURPOSE IS TO KEEP THE EYE SMOOTH AND MOIST
THE TEAR LAYER (THE LACRIMAL SYSTEM)
THE SMOOTH MUSCLE IN THE CILIARY BODY, THE ACTION OF WHICH AFFECTS THE ACCOMMODATION OF THE EYE
CILIARY MUSCLES
A BONE OF THE MIDDLE EAR WHICH IS ATTACHED TO THE INNER SURFACE OF THE EARDRUM AND VIBRATES WITH SOUND WAVES?
HAMMER
A BUNDLE OF NERVE FIBERS THAT CARRY HEARING INFORMATION BETWEEN THE COCHLEA AND THE BRAIN
AUDITORY NERVE
TRANSMITS IMPULSES TO THE BRAIN FROM THE RETINA AT THE BACK OF THE EYE
OPTIC NERVE
THE SECOND STRUCTURE THAT LIGHT STRIKES. IT IS THE CLEAR TRANSPARENT FRONT PART OF THE EYE. IT IS LIKE A PROTECTIVE WINDOW. THE FUNCTION OF THE CORNEA IS TO LET LIGHT RAYS ENTER THE EYE AND CONVERGE THE LIGHT RAYS
CORNEA
THE TRANSPARENT STRUCTURE IN THE EYE THAT, ALONG WITH THE CORNEA, HELPS TO REFRACT LIGHT TO BE FOCUSED ON THE RETINA
LENS
A BONE IN THE MIDDLE EAR OF HUMANS AND OTHER MAMMALS WHICH IS INVOLVED IN THE CONDUCTION OF SOUND VIBRATIONS TO THE INNER EAR
STIRRUP
A NARROW PASSAGE LEADING FROM THE PHARYNX TO THE CAVITY OF THE MIDDLE EAR PERMITTING THE EQUALIZATION OF PRESSURE ON EACH SIDE OF THE EARDRUM
EUSTACHIAN TUBE
A LAYER AT THE BACK OF THE EYEBALL CONNECTING CELLS THAT TRIGGER NERVE IMPULSES THAT PASS VIA THE OPTIC NERVE TO THE BRAIN, WHERE THE VISUAL IMAGE IS FORMED
RETINA
FILLED WITH AQUEOUS HUMOR. AQUEOUS HUMOR IS A CLEAR, WATERY FLUID THAT FILLS THE SPACE BETWEEN THE CORNEA AND THE IRIS. ITS FUNCTION IS TO NOURISH THE CORNEA, IRIS, AND LENS BY CARRYING NUTRIENTS. IT REMOVES WASTE PRODUCTS.
ANTERIOR CHAMBER
THE TRANSPARENT, JELLYLIKE TISSUE THAT FILLS THE EYEBALL BEHIND THE LENS
VITREOUS HUMOR