eye sight and sound Flashcards
Retina
where images form upside down
Optic Nerve
Transforms image to right side up to brain
cones
see color
rods
see light
iris
the membrane is a tiny, smooth muscle tat allows light to enter the eye and is responsible for the color of the eye
fovea centralis
photoceptors and connecting neurons tightly packed
horizontal band
visual streak, alarmed as slightest movement, notice subtle body cues
stereopsis
combine 2 different images to judge distance
ramp retina
inflexible lens, disproved
Tapetum Lucidium
reflective layer behind retina in nocturnal animals, reflects light back to the retina
palpebral reflex
lightly touch the eyelid, should close eye, determine skin sensation and control face muscles
pupillary light reflex
performed in dim lighting, shine penlight into each eye, pupils should constrict
menace reflex
appropriate response is to blink the eye
pryer reflex
ears toward the sound
vestigial muscles
allow ears to move