There are this many extrinsic muscles of the eye
6

The name of this group of bones.
Ossicles.
Basilar Membrane
One of the membranes of the organ of corti
The anterior chamber is located between these two structures
Cornea and Iris
Inner ear is divided into
Bony Labyrinth and Membranous Labyrinth
The trochlear nerve innervates this muscle
Superior Oblique
Technical term for ear canal
External Auditory Canal
Tectorial Membrane
one of the membranes of the organ of corti
The posterior chamber is located between these two structures
Behind the iris and anterior to the lens

These ring-like structures on the left side of the image are partly responsible for our sense of equilibrium.
Semicircular canals.
The Lateral Rectus is innervated by this cranial nerve
Abducens CNVI
Technical term for ear drum
Tympanic Membrane
One of the two types of photoreceptors found in the retina
cones or rods
The technical term for our "blind spot".
Optic disc.
Fluid found in the Vestibular duct
Perilymph
This muscle contracts in response to bright light.
Radial muscle(s) of the iris.
Three main structures of the inner ear
Vestibule, semicircular canals, and cochlea
One of the two types of photorecteptors found in the retina
Cones or Rods
The two main structures of the fibrous tunic
Cornea and sclera
Function of the Auricle
Acts like a funnel to collect and modify sound waves
Superior Rectus, Medial Rectus, Inferior Rectus, and Lateral Rectus are all innervated by this cranial nerve
Oculomotor CNIII
What tube equalizes pressure between the middle ear and the environment
Eustachian
The name of the "hairs" that bend to facilitate hearing and equilibrium.
Stereocilia.
The Fovea Centralis allows for the sharpest, most saturated vision because this
High concentration of cones
Fluid found between the two labyrinths
Endolymph