Special Senses -The Eye

Flashcards to help review the key concepts related to the anatomy of the eye, using fill-in-the-blank style questions.

The apex of the bony orbit contains the __, transmitting the optic nerve (CN II).

optic canal

The superior and inferior __ fissures are utilised by nerves and vessels to pass into and from the orbit.

orbital

The __ apparatus includes glands, ducts, & canals that produce & drain the lacrimal fluid from orbit into the nasal cavity.

lacrimal

__ clean, lubricate & moisten parts of the eyeball that are exposed to air to prevent it from drying.

Tears

The contraction of the __ causes the lens to assume a more rounded shape.

ciliary muscle

The __ pupillae reduces the pupil size.

sphincter

__ are specialised cells that are found within the neural layer of the retina.

Photoreceptors

Complete loss of cone vision causes a person to become legally __.

blind

__ is often done as part a physical eye exam to visualise the posterior part or the fundus of the eye.

Opthalmoscopy

The fundus of the eye is only location in the body where the __ can be visualised.

vasculature

What is the role of the ciliary muscle in vision?

The ciliary muscle contracts to change the shape of the lens, allowing for focusing on near objects.

What structures produce and drain lacrimal fluid?

The lacrimal apparatus includes glands, ducts, and canals responsible for the production and drainage of tears.

How does the sphincter pupillae affect pupil size?

The sphincter pupillae contracts to reduce the size of the pupil.

What is the function of photoreceptors in the eye?

Photoreceptors detect light and convert it into electrical signals for the brain.

What is the significance of the fundus during an eye examination?

The fundus is examined to visualize the retina and the vasculature of the eye

The apex of the bony orbit contains the __, transmitting the optic nerve (CN II).

optic canal

The superior and inferior __ fissures are utilised by nerves and vessels to pass into and from the orbit.

orbital

The __ apparatus includes glands, ducts, & canals that produce & drain the lacrimal fluid from orbit into the nasal cavity.

lacrimal

__ clean, lubricate & moisten parts of the eyeball that are exposed to air to prevent it from drying.

Tears

The contraction of the __ causes the lens to assume a more rounded shape.

ciliary muscle

The __ pupillae reduces the pupil size.

sphincter

__ are specialised cells that are found within the neural layer of the retina.

Photoreceptors

Complete loss of cone vision causes a person to become legally __.

blind

__ is often done as part a physical eye exam to visualise the posterior part or the fundus of the eye.

Opthalmoscopy

The fundus of the eye is only location in the body where the __ can be visualised.

vasculature