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The body of the superior oblique muscle is located behind the eyeball, but the tendon (redirected by the trochlea) approaches the eyeball from the front. The tendon attaches to the top (superior aspect) of the eyeball at an angle of 51 degrees concerning the primary position of the eye (looking straight forward). Therefore, the force of the ...
The suspensory ligament of eyeball (or Lockwood's ligament) forms a hammock stretching below the eyeball between the medial and lateral check ligaments and enclosing the inferior rectus and inferior oblique muscles of the eye.
The infratrochlear nerve is named after a structure it passes under. Infratrochlear means "below the trochlea".The term trochlea means "pulley" in Latin. Specifically, the trochlea refers to a fibrocartilaginous loop at the superomedial surface of the orbit called the trochlea, through which the tendon of the superior oblique muscle passes.
The enthesis (plural entheses) is the connective tissue which attaches tendons or ligaments to a bone. [1] There are two types of entheses: fibrous entheses and fibrocartilaginous entheses. [2] [3] In a fibrous enthesis, the collagenous tendon or ligament directly attaches to the bone.
Brown syndrome is a rare form of strabismus characterized by limited elevation of the affected eye. The disorder may be congenital (existing at or before birth), or acquired. Brown syndrome is caused by a malfunction of the superior oblique muscle , causing the eye to have difficulty moving up, particularly during adduction (when eye turns ...
If hyaline cartilage is torn all the way down to the bone, the blood supply from inside the bone is sometimes enough to start some healing inside the lesion. In cases like this, the body will form a scar in the area using a special type of cartilage called fibrocartilage. [2]
The primary functions of the TFCC: To cover the ulna head by extending the articular surface of the distal radius. Load transmission across the ulnocarpal joint and partially load absorbing; Allows forearm rotation by giving a strong but flexible connection between the distal radius and ulna. It also supports the ulnar portion of the carpus.
Strabismus (lazy eye) may be caused by a medial rectus muscle that is located too high in the orbit of the skull. [4] Esotropia (convergent strabismus) may also be caused by sixth nerve palsy, which causes weakness or paralysis of the lateral rectus muscle. [6] Sometimes, botulinum toxin may be injected into the medial rectus muscle. [6]