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Bicipital groove

Groove in the humerus bone

Field	Value
Name	Bicipital
Latin	sulcus intertubercularis
Image	Gray207.png
Caption	Left humerus. Anterior view. (Intertubercular groove visible at top.)
Image2	Sobo 1909 115.png
Caption2	intertubercular groove, upper left.

The bicipital groove (intertubercular groove, sulcus intertubercularis) is a deep groove on the humerus that separates the greater tubercle from the lesser tubercle. It allows for the long tendon of the biceps brachii muscle to pass.

Structure

The bicipital groove separates the greater tubercle from the lesser tubercle. It is usually around 8 cm long and 1 cm wide in adults. The groove lodges the long tendon of the biceps brachii muscle, positioned between the tendon of the pectoralis major muscle on the lateral lip and the tendon of the teres major muscle on the medial lip. It also transmits a branch of the anterior humeral circumflex artery to the shoulder joint.

The insertion of the latissimus dorsi muscle is found along the floor of the bicipital groove. The teres major muscle inserts on the medial lip of the groove.

It runs obliquely downward, and ends near the junction of the upper with the middle third of the bone. It is the lateral wall of the axilla.

Function

The bicipital groove allows for the long tendon of the biceps brachii muscle to pass.

Gallery

Intertubercular Groove or Bicipital Groove — Anterior view of the head of left humerus. Bicipital groove seen in the middle.

References

(2010-01-01). "Morphometry of the human bicipital groove (sulcus intertubercularis)". Journal of Shoulder and Elbow Surgery.
"Dissector Answers - Axilla and Arm".

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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