HST Body Systems: Vision

​Lens

Pupil

Cornea

Sclera

Retina

Optical Nerve

Iris

Ciliary Muscles

Multiple Choice

In your eye, your lens __________________________________

• is impermeable

• focuses light onto your retina

• is a firm gelatinous fluid

• all of the above

Multiple Choice

True or False: Your retina is where the photoreceptors are.

• True

• False

Multiple Choice

What part of the eye is responsible for interpreting colors?

• Iris

• Rods

• Cones

• Optic nerve

Multiple Choice

What is number 2 ?

• Vestibule

• Semicircular canals

• pinna

• Tympanic membrane (ear drum)

Multiple Choice

The bones of the middle ear are collectively known as the ____

• superior temporal gyrus

• cochlea

• ossicles

• malleus, incus, and sternum

• tympanic membrane

Multiple Choice

What sense helps maintain balance?

• Vestibular

• Kinesthetic

• Proprioception

• Audition

• Olfaction