Bassett Collection of Stereoscopic Images of Human Anatomy

Dissection of thoracic and lumbosacral regions of back from a posterior approach

Left serratus posterior superior in relation to splenius and erector spinae muscles

Image #212-6

KEYWORDS: Lumbar region, Muscles and tendons, Sacral region, Thoracic region, Vertebral column.

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

Dissection of thoracic and lumbosacral regions of back from a posterior approach
Left serratus posterior superior in relation to splenius and erector spinae muscles
The left shoulder girdle has been freed by removal of the trapezius, latissimus dorsi and rhomboid muscles and has been pulled away from the thoracic wall. The serratus anterior muscles (10) remains intact. The rather thick, elastic layer of fascia (11) between this muscle and the rib cage has been partially resected to reveal the serratus posterior superior muscle (5).
1 . Splenius capitis muscle
2 . Levator scapulae muscle
3 . Dorsal scapular nerve
4 . Transverse colli artery
5 . Serratus posterior superior muscle
6 . Rib III
7 . External intercostal muscle
8 . Medial margin of scapula
9 . Rhomboid major muscle (cut off)
10 . Serratus anterior muscle (elevated)
11 . Fascial layer between serratus anterior and thoracic wall
12 . Iliocostalis muscle
13 . Longissimus thoracis muscle
14 . Trapezius muscle
15 . Thoracolumbar fascia
16 . Fascia infraspinata
17 . Latissimus dorsi muscle
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