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			File:Lesser-Tubercle-of-Right-Humerus.jpg\|Lesser tubercle of right humerus
			File:Insertion-of-subscapularis-muscle.jpg\|Insertion of subscapularis muscle
			File:Gray326.png\|Lesser tubercle
			File:Human_arm_bones_diagram.svg\|Lesser tubercle
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'''Lesser Tubercle'''

The '''Lesser Tubercle''' is a significant anatomical structure found in the [[human body]]. It is a part of the [[humerus]], the long bone in the upper arm or forelimb that runs from the shoulder to the elbow.

==Etymology==

The term "tubercle" is derived from the Latin word "tuberculum," which means a small swelling or lump. The prefix "lesser" is used to differentiate this structure from the larger "greater tubercle," both of which are found on the humerus.

==Anatomy==

The lesser tubercle of the humerus is a small, rounded eminence located on the anterior aspect of the bone. It is situated medial to the [[head of the humerus]] and is separated from the [[greater tubercle]] by the [[intertubercular groove]].

The lesser tubercle provides an attachment site for one of the four muscles of the [[rotator cuff]], the [[subscapularis muscle]]. This muscle plays a crucial role in the internal rotation of the humerus.

==Clinical Significance==

Injuries or abnormalities of the lesser tubercle can lead to a range of medical conditions. For instance, fractures of the lesser tubercle, although rare, can occur and may require surgical intervention. Additionally, abnormalities of the lesser tubercle can be associated with shoulder impingement syndrome, a common cause of shoulder pain.

==See Also==

* [[Greater tubercle]]
* [[Humerus]]
* [[Subscapularis muscle]]
* [[Shoulder impingement syndrome]]

==References==

<references />

[[Category:Anatomy]]
[[Category:Orthopedics]]
[[Category:Medical Terminology]]

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Lesser tubercle - Revision history

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