Anatomy of The Eye
What are the three tunics of the eye?
fibrous, vascular, and sensory layers
Which photoreceptors detect dim light?
rods
What collects sound waves?
auricle (pinna)
What is the fluid in the bony labyrinth?
perilymph
What structures detect linear acceleration?
utricle and saccule
Which eye structure is transparent and avascular?
Cornea
Central vision and color discrimination rely on?
cones in the fovea centralis
What is the boundary between the outer and middle ear?
tympanic membrane
What is the fluid in the membranous labyrinth?
endolymph
Which structures detect rotational motion?
semicircular ducts
What forms the white of the eye?
sclera
Where do optic nerve fibers partially cross?
optic chiasma
Name the three ossicles
malleus, incus, stapes
The organ of Corti lies on which membrane?
Basilar membrane
What is the sensory epithelium in the utricle/saccule called?
macula
What part of the vascular layer controls lens shape?
ciliary body
Visual impulses reach which brain lobe?
occipital lobe (primary visual cortex)
What connects middle ear to nasopharynx?
pharyngotympanic tube
What is the function of the round window?
pressure relief of sound waves in cochlea
What sensory structure detects rotation in the semicircular canals?
crista ampullaris
What is the pigmented part of the vascular layer visible externally?
Iris
Damage to the macula lutea leads to what deficit?
loss of central vision while peripheral remains
What structure receives the stapes footplate?
oval window
What is an infection of the middle ear called?
otitis media
the gel cap covering Crista hair cells is?
cupula