Anatomy Special Senses

Blood rich nutritive layer that contains a pigment(prevents light from scattering)

• choroid

• ciliary body

• iris

• pupil

Attached to lens by a suspensory ligament called the Ciliary zonule

• choroid

• ciliary body

• iris

• pupil

regulates amount of light entering eye

• choroid

• ciliary body

• iris

• pupil

rounded opening in the iris

• chorioid

• ciliary body

• iris

• pupil

retina contains two layers:

• rods;cones

• ciliary body; ciliary zonoid

• outer pigmented layer; inner pigmented layer

• cornea;sclera

rods and cones are:

• fibrous layers

• pigmented layers

• receptors

• photoreceptors

where the optic nerve leaves the eyeball

• optic disc

• optic nerve

• optic retina

• optic signals

allow vision in dim light and peripheral vision

• sensory layer

• rods

• cones

• cone sensitivity

allow detailed color vision

• sensory layer

• rods

• cones

• cone sensitivity

lateral to blind spot

• sensory layer

• fovea centralis

• rods

• cone sensitivity