Quadrangular space

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Quadrangular space
Axillary space.png
Suprascapular and axillary nerves of right side, seen from behind. Quadrangular space is the lateral space, labeled in green at center right. Axillary nerve is visible entering it.
Gray524.png
The scapular and circumflex arteries. (Quadrangular space is visible but not labeled. Posterior humeral circumflex artery is visible entering quadrangular space at center right.)
Identifiers
Gray's p.589
Anatomical terminology

The quadrangular space (or quadrilateral space [of Velpeau] or Foramen Humerotricipitale) is an axillary space in the arm. This is a clinically important anatomic space in the arm. In the quadrangular space, the axillary nerve and posterior circumflex humeral artery can be compressed or damaged due to space-occupying lesions or disruption in the anatomy due to trauma. Symptoms include axillary nerve related weakness of the deltoid muscle in the case of any significant mass lesions in the quadrangular space.

Boundaries[edit]

It is bounded by:[1]

Contents[edit]

It transmits the axillary nerve and posterior humeral circumflex artery.

See also[edit]

Additional images[edit]

References[edit]

  1. ^ Anatomy photo:03:04-0101 at the SUNY Downstate Medical Center - "Scapular Region: Quadrangular Space of Scapular Region"
  2. ^ Adam Mitchell; Drake, Richard; Gray, Henry David; Wayne Vogl (2005). Gray's anatomy for students. Elsevier/Churchill Livingstone. p. 649. ISBN 0-443-06612-4. 

External links[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.