infraspinous fossa

{{Use American English|date = January 2019}}

{{Short description|Part of the shoulder blade}}

{{Use mdy dates|date = January 2019}}

{{Infobox bone

| Name = Infraspinatous fossa

| Latin = fossa infraspinata

| Image = Infraspinatous fossa of left scapula01.png

| Caption = Left scapula. Dorsal surface. Infraspinatous fossa shown in red.

| Image2 = Posterior surface of scapula.jpg

| Caption2 = Left scapula. Dorsal surface. Infraspinatous fossa labeled at center.

}}

The infraspinous fossa (infraspinatus fossa or infraspinatous fossa) of the scapula is much larger than the supraspinatous fossa; toward its vertebral margin a shallow concavity is seen at its upper part; its center presents a prominent convexity, while near the axillary border is a deep groove which runs from the upper toward the lower part.

The medial two-thirds of the fossa give origin to the infraspinatus; the lateral third is covered by this muscle.