Trochlear fovea: Difference between revisions

Revision as of 11:55, 9 February 2025

Anatomical feature of the human skull

Trochlear fovea

The trochlear fovea is a small depression located on the anterolateral aspect of the orbital surface of the frontal bone of the skull. It is situated near the orbital margin and 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

The trochlear fovea is found in the upper part of the orbit, near the junction of the frontal bone and the ethmoid bone. It is a small, shallow depression that can vary in size and shape among individuals. The fovea is located just medial to the supraorbital notch or foramen, which transmits the supraorbital nerve and vessels.

Function

The primary function of the trochlear fovea is to provide a stable attachment point for the trochlea, which acts as a pulley for the superior oblique muscle. This muscle is responsible for depressing, abducting, and intorting the eye, allowing for complex movements necessary for proper vision.

Clinical significance

Injuries or abnormalities involving the trochlear fovea or the trochlea can affect the function of the superior oblique muscle, leading to strabismus or other ocular motility disorders. Such conditions may require surgical intervention to correct the alignment of the eye.

Related pages

References

Susan,

 Gray's Anatomy: The Anatomical Basis of Clinical Practice, 
 41st edition, 
 Elsevier, 
 2016, 
  
  
 ISBN 978-0-7020-5230-9,

Williams, Peter L.,

 Gray's Anatomy, 
 Journal of Anatomy, 
 2002,
 Vol. 200(Issue: 5),
 pp. 603–605,
 DOI: 10.1046/j.1469-7580.2002.00001.x,

@@ 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.
+{{Short description|Anatomical feature of the human skull}}
+{{Use dmy dates|date=October 2023}}
-==Etymology==
+[[File:Gray135.png|thumb|right|Diagram of the orbit 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.
+==Trochlear fovea==
+The '''trochlear fovea''' is a small depression located on the anterolateral aspect of the [[orbital surface]] of the [[frontal bone]] of the [[skull]]. It is situated near the [[orbital margin]] and 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==
-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.
+The trochlear fovea is found in the upper part of the [[orbit (anatomy)|orbit]], near the junction of the [[frontal bone]] and the [[ethmoid bone]]. It is a small, shallow depression that can vary in size and shape among individuals. The fovea is located just medial to the [[supraorbital notch]] or foramen, which transmits the [[supraorbital nerve]] and vessels.
-==Clinical Significance==
+==Function==
-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.
+The primary function of the trochlear fovea is to provide a stable attachment point for the trochlea, which acts as a pulley for the [[superior oblique muscle]]. This muscle is responsible for [[eye movement|depressing]], [[abduction|abducting]], and [[intorsion|intorting]] the eye, allowing for complex movements necessary for proper vision.
-==See Also==
+==Clinical significance==
-* [[Humerus]]
+Injuries or abnormalities involving the trochlear fovea or the trochlea can affect the function of the superior oblique muscle, leading to [[strabismus]] or other ocular motility disorders. Such conditions may require surgical intervention to correct the alignment of the eye.
-* [[Trochlea]]
-* [[Ulna]]
+==Related pages==
-* [[Elbow joint]]
+* [[Orbit (anatomy)]]
+* [[Frontal bone]]
+* [[Superior oblique muscle]]
+* [[Eye movement]]
 ==References==
-<references />
+* {{Cite book |last=Standring |first=Susan |title=Gray's Anatomy: The Anatomical Basis of Clinical Practice |edition=41st |year=2016 |publisher=Elsevier |isbn=978-0-7020-5230-9}}
+* {{Cite journal |last=Williams |first=Peter L. |title=Gray's Anatomy |journal=Journal of Anatomy |volume=200 |issue=5 |year=2002 |pages=603–605 |doi=10.1046/j.1469-7580.2002.00001.x}}
-{{stub}}
-[[Category:Anatomy]]
+[[Category:Human anatomy]]
-[[Category:Orthopedics]]
+[[Category:Skull]]
-[[Category:Medical Terminology]]