Intertubercular groove
The bicipital groove (also known as the intertubercular sulcus or sulcus intertubercularis) is the indentation between the greater and lesser tuberosities of the humerus that lodges the biceps tendon.
Gross anatomy
The bicipital groove is typically 4-6 mm deep . It contains the tendon of the long head of the biceps brachii muscle, which is ensheathed in a synovial reflection of the glenohumeral joint.
Attachments
Musculotendinous
Three muscle tendons insert on the bicipital groove region:
- lateral lip (crest of the greater tuberosity): pectoralis major
- floor: latissimus dorsi
- medial lip (crest of the lesser tuberosity): teres major
Relations and/or boundaries
The bicipital groove is located on the anterior surface of the proximal humerus with the following boundaries:
- superiorly: transverse humeral ligament
- laterally: greater tuberosity of the humerus
- medially: lesser tuberosity of the humerus
Related pathology
