Parts of the human eye and their functions (Page 1 notes)

Fill-in-the-blank flashcards covering key eye anatomy terms and their functions from the notes.

__ are strong fibres which hold the eye lens in its position.

Suspensory ligaments

__ is a transparent layer which refracts and focuses light onto the retina.

Cornea

__ is a muscle that changes the thickness of the eye lens through contractions and relaxations.

Ciliary muscle

__ is a transparent and elastic convex lens which focuses light onto the retina.

Eye lens

__ is a strong layer that maintains the shape of the eye and protects it.

Sclera

__ is a black layer that prevents reflection of light in the eye and supplies oxygen and nutrients to the eye.

Choroid

__ is the layer containing photoreceptors which detects light and produces nerve impulses.

Retina

__ is the part of the retina which is most sensitive to light as it has many photoreceptors.

Yellow spot

__ is the coloured part of the eye which controls the size of the pupil.

Iris

__ is the opening in the centre of the iris which controls the quantity of light entering the eye.

Pupil

__ is a transparent fluid which maintains the shape of the eyeball and focuses light into the eye.

Aqueous humour

__ is a transparent membrane which protects the front part of the sclera.

Conjunctiva

__ is a transparent jelly-like substance which maintains the shape of the eyeball and focuses light onto the retina.

Vitreous humour

__ is the part of the retina which is not sensitive to light as there are no photoreceptors and an exit point for all optic nerve fibres.

Blind spot

__ are nerve fibres which carry nerve impulses from the retina to the brain to be interpreted.

Optic nerves