Lane Medical Library

Bassett Collection of Stereoscopic Images of Human Anatomy

Dissection of breast and anterolateral thoracic wall

First and second left intercostal spaces, close-up view of nerves to external intercostal muscle

Image #115-4

KEYWORDS: Bones joints cartilage, Muscles and tendons, Peripheral nervous system, Rib cage.

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Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

Dissection of breast and anterolateral thoracic wall
First and second left intercostal spaces, close-up view of nerves to external intercostal muscle
The external intercostal muscle has been reflected in the first intercostal space to expose the internal intercostal muscle. The intrinsic muscle fascia has been removed. In the second interspace the external intercostal has been dissected to illustrate a portion of its nerve supply.
1 . External intercostal muscle (reflected upward)
2 . Internal intercostal muscle
3 . Rib II
4 . External intercostal muscle
5 . Lateral cutaneous branch intercostal nerve II
6 . Nerve to external intercostal muscle
7 . Internal intercostal muscle
8 . Branch of posterior intercostal artery

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