Ocular Anatomy & Physiology

What structures make up the orbit? What is the adaptation in enclosed orbits?

What muscle rotates the eye upwards?

What muscle rotates the eye downwards?

What muscle rotates the globe laterally?

What muscle rotates the globe medially?

What muscle rotates the dorsal globe medially & ventrally?

What muscle rotates the ventral globe medially & dorsally?

What muscle retracts the globe into the orbit?

How is the canthus secured to the bone? How does the dog differ?

What muscle contracts to close the eyelids?

Name the innervation of the orbicularis oculi m.

What muscles lift the medial & lateral portions of the upper lid?

What muscle is the main elevator of the upper eyelid?

What nerve innervates the medial & lateral retractor anguli oculi m.?

What nerve innervates the levator palpebrae superioris m.?

What nerve supplies sensory innervation to the eyelids?

What branches of the trigeminal nerve supply what parts of the eyelid?

Name the 3 layers of the tear film, their production site and function

Name the 3 layers of the globe and their function

What is the function of the cornea?

Describe the structure of the anterior epithelium

Describe the structure of the stroma

Give the function of the endothelium

Describe the structure of the uvea

Give the function of the iris

Describe the mechanism & innervation of the iris

Describe the structure & function of the ciliary body

What makes up the iridocorneal angle and what is it function?

Describe the layers of the choroid

What is the function of aqueous humour?

How is aqueous humour produced?

Where does the aqueous drain from?

Where is the vitreous humour found?

What is the function of vitreous humour?

What is the function of the lens?

What structures are visible in the fundus?

Give the differences between cone & rod photoreceptors