Trochlear fovea: Difference between revisions

Latest revision as of 04:01, 13 February 2025

Trochlear Fovea[edit]

Diagram of the human skull showing the location of the trochlear fovea.

The trochlear fovea is a small depression located on the anteromedial aspect of the orbital surface of the frontal bone. It serves as the attachment site for the trochlea of superior oblique, a fibrocartilaginous loop through which the superior oblique muscle of the eye passes.

Anatomy[edit]

The trochlear fovea is situated near the orbital margin of the frontal bone, specifically in the upper medial quadrant of the orbit. It is a shallow depression that can vary in size and depth among individuals. The fovea is positioned anterior to the ethmoidal notch and is adjacent to the supraorbital foramen.

Function[edit]

The primary function of the trochlear fovea is to provide a stable attachment point for the trochlea, which acts as a pulley system for the superior oblique muscle. This muscle is responsible for eye movement, particularly intorsion, depression, and abduction of the eyeball. The trochlea allows the superior oblique muscle to change direction, facilitating its role in controlling the movement of the eye.

Clinical Significance[edit]

Injuries or abnormalities involving the trochlear fovea or the trochlea itself can lead to dysfunction of the superior oblique muscle, resulting in conditions such as superior oblique palsy. This can cause diplopia (double vision) and difficulties with eye movement, particularly when looking downward or inward.

Related Structures[edit]

Related Pages[edit]

@@ Line 1: / Line 1: @@
-'''Trochlear fovea''' is a small, shallow depression found on the [[trochlea]] of the [[humerus]], a long bone in the upper arm or forelimb that runs from the shoulder to the elbow. It is located on the medial part of the bone, near the elbow joint. The trochlear fovea is an important anatomical feature as it serves as a point of articulation for the [[ulna]], one of the two bones in the forearm.
+== Trochlear Fovea ==
-==Etymology==
+[[File:Gray135.png|thumb|right|Diagram of the human skull showing the location of the trochlear fovea.]]
-The term "trochlear" is derived from the Latin word "trochlea", which means "pulley". This is in reference to the pulley-like structure of the trochlea of the humerus. The term "fovea" is derived from the Latin word "fovea", which means "pit" or "depression". This is in reference to the small, shallow depression that is the trochlear fovea.
-==Anatomy==
+The '''trochlear fovea''' is a small depression located on the anteromedial aspect of the [[orbital surface]] of the [[frontal bone]]. It serves as the attachment site for the [[trochlea of superior oblique]], a fibrocartilaginous loop through which the [[superior oblique muscle]] of the eye passes.
-The trochlear fovea is located on the medial part of the [[humerus]], near the elbow joint. It is a small, shallow depression on the trochlea of the humerus. The trochlea is a spool-like structure on the distal end of the humerus that articulates with the ulna. The trochlear fovea serves as a point of articulation for the ulna, allowing for the movement of the forearm.
-==Clinical Significance==
+== Anatomy ==
-The trochlear fovea is an important anatomical landmark in orthopedic surgery, particularly in procedures involving the elbow joint. Damage to the trochlear fovea can result in reduced range of motion and pain in the elbow joint. In severe cases, surgical intervention may be necessary to repair the damage and restore normal function.
-==See Also==
+The trochlear fovea is situated near the [[orbital margin]] of the frontal bone, specifically in the upper medial quadrant of the [[orbit]]. It is a shallow depression that can vary in size and depth among individuals. The fovea is positioned anterior to the [[ethmoidal notch]] and is adjacent to the [[supraorbital foramen]].
-* [[Humerus]]
-* [[Trochlea]]
-* [[Ulna]]
-* [[Elbow joint]]
-==References==
+== Function ==
-<references />
-{{stub}}
+The primary function of the trochlear fovea is to provide a stable attachment point for the trochlea, which acts as a pulley system for the superior oblique muscle. This muscle is responsible for [[eye movement]], particularly [[intorsion]], [[depression]], and [[abduction]] of the eyeball. The trochlea allows the superior oblique muscle to change direction, facilitating its role in controlling the movement of the eye.
-[[Category:Anatomy]]
+== Clinical Significance ==
-[[Category:Orthopedics]]
-[[Category:Medical Terminology]]
+Injuries or abnormalities involving the trochlear fovea or the trochlea itself can lead to dysfunction of the superior oblique muscle, resulting in conditions such as [[superior oblique palsy]]. This can cause [[diplopia]] (double vision) and difficulties with eye movement, particularly when looking downward or inward.
+== Related Structures ==
+* [[Frontal bone]]
+* [[Orbit (anatomy)]]
+* [[Superior oblique muscle]]
+* [[Trochlea of superior oblique]]
+* [[Supraorbital foramen]]
+== Related Pages ==
+* [[Anatomy of the human eye]]
+* [[Muscles of the eye]]
+* [[Orbital anatomy]]
+[[Category:Anatomy of the human head]]