Sense Organs

Photoreceptor cell responsible for color and central vision located in the retina that transforms light energy into nerve impulses:

• choroid
• ciliary body
• optic chiasm
• cone

Pigmented layer that opens and closes to allow more or less light into the eye:

• retina
• iris
• lens
• sclera

Fibrous transparent layer of clear tissue that extends over the anterior portion of the eyeball:

• cornea
• iris
• conjunctiva
• sclera

Sensitive receptor cells of the retina that function at reduced levels of light and are responsible for peripheral vision:

• lens
• pupils
• rods
• cones

Light-sensitive nerve cell layer of the eye containing photoreceptor cells:

• lens
• pupil
• sclera
• retina

Central opening of the eye, surrounded by the iris, through which light rays pass:

• lens
• pupil
• sclera
• retina

Tough, white outer coat of the eyeball:

• lens
• pupil
• sclera
• retina

What is the meaning of "photo"?

• night

• light

• darkness

• vision

Name the cutaneous receptor which detects pressure

• Meissner

• Paccinian

• Krause

• Caloreceptor

Name ear auditory ossicles