The Adnexa Flashcards
The tissues and structures surrounding the eye are called
The Adnexa
The pear-shaped bony cavity in the skull that houses the globe, extraocular muscles, blood vessels, and nerves is called
The Orbit
The muscles that control movement of the globe are called
Extraocular muscles
How many extraocular muscles are there?
6
Which muscle rotates the eye inward toward the nose (adduction)?
The Medial Rectus Muscle
Which muscle rotates the eye outward toward the temple (abduction)?
The Lateral Rectus Muscle
Which muscle primarily causes a torsional movement and twists the eye down and inward (incyclotorsion)?
The superior oblique muscle
Which muscle primarily causes a torsional movement and twists the eye up and outward (excyclotorsion)?
The inferior oblique muscle
The muscle that is the primary muscle responsible for turning the eye upward?
The superior rectus muscle
The muscle that is the primary muscle responsible for turning the eye downward?
The inferior rectus muscle
The blending of the separate images seen by each eye into one image; occurring when both eyes are directed toward a single target and perfectly aligned is
binocular vision
The blending by the brain of the separate images received by the two eyes so that a single view is perceived even when the eyes move is?
Fusion
If the extraocular muscles do not work in a coordinated manner, the eyes become misaligned and vision may be disturbed. What is this condition?
Strabismus
