The Eye

The eyelids are lined with a thin membrane called the

• conjunctiva
• sclera

F: helps protect the eye from dust, debris, and microorganisms that can cause infections. It produces mucus and tears, which can help keep the eye moist and comfortable, it contains immune cells that help fight off infections.

• conjunctiva

• lacrimal gland

The extrinsic eye muscle that depresses the eye and turns it laterally (outward)

• Inferior oblique muscle
• Superior oblique muscle

The extrinsic eye muscle that moves the eye laterally (side to side)

• lateral rectus muscle
• medial rectus muscle

F: the part of the eye that produces tears

• Lacrimal gland
• Cornea

This part of the eye drains the tears in the nasal cavity which is the reason why crying sometimes results to the need to blow your nose.

• Nasolacrimal duct
• Lacrimal gland

This part of the eye provides structure and protection to the eye. It is one of the three layers in the wall and it also serves as an attachment point for the extrinsic eye muscles, which control eye movement.

• Cornea
• Sclera

The ____ is the thickest layer and is made of fibrous connective tissue that is visible as the white of the eye.

• cornea
• sclera

This part of the eye is the primary focusing element. It refracts light that enters the eye to help focus it onto the retina.

• Iris
• Cornea

The _____ has no capillaries, covers the iris and pupil inside the eye, and is the first part of the eye that refracts, or bends light rays.

• lens
• cornea