test 3 lecture

Sclera

White of the eye

Optic disc

Blind spot is called?

Optic disc

What lacks cons & rods?

Ciliary body

Structure attached to the lens, holding it in place is?

Lens

What structure changes shape to accommodate for distance?

Cornea

Clear outer covering of the eye is called?

Fovea centralis

What is the area called of concentrated cones and only color perception occur at?

Lacrimal apparatus

What structure assists with tear production?

Lacrimal gland

What produces lacrimal fluid?

Lacrimal canals

Drains lacrimal fluid from the eyes

Lacrimal sac

Provides passage of lacrimal fluid towards the nasal cavity is?

Nasolacrimal duct

Empties lacrimal fluid into the nasal cavity

Pupil

What is the dark colored center of the eye called?

Pupil

What dilates to allow light in and constricts to let less light in?

Rhodopsin

Photopigment protein, one or more types are deficient in color blindness

Cones

Do cones or rods perceive color?

Cones

Do cones or rods have higher threshold?

Cones

Are cones or rods color sensitive?

Cones

Does cones or rods have acute vision?

Cones

Are cones or rods concentrated at fovea?

Rods

Are cones or rods most numerous?

Rods

Are cones or rods more sensitive to light?

Rods

Do cones or rods have a low threshold?

Rods

Do cones or rods adaptive to the dark?

Rods

Do cones or rods have gray & fuzzy vision?

Ganglion cells

Input from bipolar neurons is?

Ganglion cells

Axons form optic nerve is?

Ganglion cells

Axon terminals synapse in thalamus is?

Ganglion cells

Superior Colliculus

Ganglion cells

Hypothalamus

1. Cornea

2. Anterior segment

3. Pupil

4. Lens

5. Posterior segment

6. Neural layer of retina

7. Pigmented retina

What is the pathway of light?

Emmetropia

Eye focuses images correctly on the retina