Anatomical hierarchy

General Anatomy > Parts of human body > Upper limb > Axilla

Translations

Description

The axilla (or armpit, underarm, or oxter) is the area on the human body directly under the joint where the arm connects to the shoulder. It also provides the under-arm sweat gland.

Anatomically, the boundaries of the axilla are:

  • superiorly: by the outer border of first rib, superior border of scapula, and posterior border of clavicle
  • medially: serratus anterior and by the ribcage
  • anteriorly: by the pectoralis major, minor, and subclavius
  • posteriorly: by the subscapularis above, and teres major and latissimus dorsi below
  • laterally: by the intertubercular sulcus (coracobrachialis and the short head of the biceps brachii are in the axilla.

Images

MRI Axial image Axilla
MRI Sagittal image Axilla
MRI Coronal image Axilla
Schema Muscles of upper limb image Axilla
Schema Cross sections image Axilla
MRI Thorax image Axilla
MRI Pectoral girdle; Shoulder girdle image Axilla
CT Axial image Axilla
CT Sagittal image Axilla
CT Coronal image Axilla

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