Which of the following is true of the vascular tunic of the eye?
Regulates the amount of light entering the eye
Provides a route for blood vessels and lymphatics that supply tissues of the eye
Secretes and reabsorbs the aqueous humor
Controls the shape of the lens
All of the choices are correct
All of the choices are correct
The part of the eye that determines eye color is the
Conjunctiva
Pupil
Cornea
Canal of Schlemm
Iris
Iris
The middle ear communicates with the nasopharynx through the
Membranous labyrinth
Auditory tube
Auditory meatus
Bony labyrinth
Auditory meatus
The vitreous body
Helps to stabilize the eye and give physical support to the retina
Is replaced at the rate of 20 percent per year until middle age
Fills the posterior chamber
Controls the amount light that enters the eye
All choices are correct
Helps to stabilize the eye and give physical support to the retina
All of the following are true of the fibrous tunic of the eye, except that it
Provides mechanical support and some protection for the eye
Consists of the sclera, limbus, and cornea
Produces aqueous humor
Is where extrinsic eye muscles insert
Produces aqueous humor
The structure that overlies the organ of Corti is the
Perilymph
Tectorial membrane
Basilar membrane
Stapedius
Endolymph
Tectorial Membrane
What structure changes the shape of the lens for far and near vision?
Ciliary body
Extrinsic eye muscles
Aqueous humor
Iris
None, because the lens is rigid
Ciliary body
the senses of equilibrium and hearing are provided by receptors of the
Inner ear
Perilymph
Membranous endolymph
Organ of Schlemm
Bony labyrinth
Inner Ear
The _____ covers most of the exposed surface of the eye.
iris
conjuctiva
anterior chamber
cornea
lens
Conjunctiva