infraspinous fossa

anatomy

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Last updated

June 17, 2026

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The infraspinous fossa is an anatomical feature of the scapula, commonly known as the shoulder blade. This is one of two concave areas on the posterior (back) surface of the scapula, divided by a prominent ridge called the spine. The infraspinous fossa, along with the supraspinous fossa, serves as an attachment point for muscles that are crucial for rotating the arm. The term "infrascapularis" is a database term that refers to the teres minor muscle, which attaches to this fossa.12

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scapula
…concave areas, the supraspinous and infraspinous fossae. The spine and fossae give attachment to muscles that act in rotating the arm. The spine ends in the acromion, a process that articulates with the clavicle, or collarbone, in front and helps form the upper part of the shoulder socket. The lateral…
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…concave areas, the supraspinous and infraspinous fossae. The spine and fossae give attachment to muscles that act in rotating the arm. The spine ends in the acromion, a process that articulates with the clavicle, or collarbone, in front and helps form the upper part of the shoulder socket. The lateral…
Read More