Posterior compartment of the arm

The posterior compartment of the arm is one of the two compartments in the arm.

A sheath of deep fascia surrounds the arm, the brachial fascia. Two intermuscular septa (medial and lateral) extend from it to attach to the humerus at the medial condylar ridge and lateral supracondylar ridge, respectively. These septa divide the arm into its anterior and posterior compartments.

Anatomy: Upper limb
Share article

Article information

rID: 24402
Section: Anatomy
Synonyms or Alternate Spellings:
  • Posterior compartment (arm)
  • Posterior compartments of the arms
  • Posterior compartment of the arms
  • Posterior compartments of the arm

Support Radiopaedia and see fewer ads

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.