Special Senses

Semicircular canals are used mostly for _______________.

• maintaining equilibrium

• hearing

• detecting light

• smelling

• tasting

Tears are secreted from _______________.

• lacrimal glands

• tear glands

• nasolacrimal ducts

• tear sacs

The thin membrane that lines the eyelids is the _______________.

• retina

• conjunctiva

• cornea

• sclera

• iris

The muscles which produce gross eye movements and make it possible for the eyes to follow objects are the _______________.

• extrinsic muscles

• intrinsic muscles

• suspensory ligaments

Earwax is produced in the _______________.

• lacrimal glands

• the middle ear

• external auditory canal

The three layers of the eye wall are _______________, _______________, and _______________.

• sclera, retina, iris

• sclera, choroid, retina

• sclera, choroid, cornea

The clear anterior portion of the sclera is called the _______________.

• iris

• retina

• pupil

• cornea

• conjunctiva

The choroid layer is _______________.

• the middle layer containing blood vessels

• the inner layer containing cones and rods

• the tough outer layer

• a transparent layer covering the iris

• a layer that produces aqueous humor

The pupil is found in the _______________ layer.

• sclera

• choroid

• corneal

The posterior chamber is found _______________ the lens and contains the _______________ humor.

• beside, vitreous

• in front of, aqueous

• in front of, vitreous

• behind, vitreous