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The trochlea of superior oblique is a pulley-like structure in the eye. The tendon of the superior oblique muscle passes through it. It is the only cartilage found in the normal orbit, on the superior nasal aspect of the frontal bone. The word trochlea comes from the Greek word for pulley.
The superior oblique muscle loops through a pulley-like structure (the trochlea of superior oblique) and inserts into the sclera on the posterotemporal surface of the eyeball. It is the pulley system that gives superior oblique its actions, causing depression of the eyeball despite being inserted on the superior surface. Superior oblique nerve
This condition is an uncommon but treatable cause of periorbital pain. The trochlea is a ring-like apparatus of cartilage through which passes the tendon of the superior oblique muscle. It is located in the superior nasal orbit and functions as a pulley for the superior oblique muscle. Inflammation of the trochlear region leads to a painful ...
The superior oblique muscle which the trochlear nerve innervates ends in a tendon that passes through a fibrous loop, the trochlea, located anteriorly on the medial aspect of the orbit. Trochlea means “pulley” in Latin; the fourth nerve is thus also named after this structure. The words trochlea and trochlear (/ ˈ t r ɒ k l i ə /, / ˈ t ...
The superior oblique muscle originates at the back of the orbit (a little closer to the medial rectus, though medial to it), getting rounder as it [5] courses forward to a rigid, cartilaginous pulley, called the trochlea, on the upper, nasal wall of the orbit. The muscle becomes tendinous about 10mm before it passes through the pulley, turning ...
The supratrochlear nerve passes medially [3] above the trochlea of the superior oblique muscle. [2] [3] It then travels anteriorly above the levator palpebrae superioris muscle. [1] It exits the orbit through the supratrochlear notch or foramen. [3] It then ascends onto the forehead beneath the corrugator supercilii muscle and frontalis muscle ...
Trochlea of superior oblique (see also superior oblique muscle), a mover of the eye which is supplied by the trochlear nerve, or fourth cranial nerve Topics referred to by the same term This disambiguation page lists articles associated with the title Trochlea .
Attached to the trochlear fovea is the trochlea of the superior oblique muscle. References This ...