Skip to main content

Unfortunately we don't fully support your browser. If you have the option to, please upgrade to a newer version or use Mozilla Firefox, Microsoft Edge, Google Chrome, or Safari 14 or newer. If you are unable to, and need support, please send us your feedback.

Elsevier
Publish with us
Dorsal Branch of Fifth Posterior Intercostal Artery (Left)
Cardiovascular System

Dorsal Branch of Fifth Posterior Intercostal Artery (Left)

Ramus dorsalis arteriae intercostalis posterioris quintae

Read more

Origin

The dorsal branches arise from the posterior intercostal arteries as they pass by the neck of the ribs.

Course

From their origin, the dorsal branches of the posterior intercostal arteries pass posteriorly, between the adjacent ribs, lateral to the vertebral body and medial to the superior costotransverse ligament.

Branches

A spinal branch arises near the intervertebral foramen, where it enters to reach the vertebral canal. The dorsal branch also gives rise to lateral and medial cutaneous branches.

Supplied Structures

The spinal branch supplies structures of the vertebral canal, including the spinal cord and meninges. The medial and lateral branches supply muscles of the back, including components of erector spinae, latissimus dorsi and trapezius, as well as the overlying skin.

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy