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Aponeurosis



Aponeuroses (απο, "away" or "of", and νευρον, "sinew") are membranes separating muscles from each other. They have a shiny, whitish-silvery color, and are histologically similar to tendons, but are very sparingly supplied with blood vessels and nerves. When dissected, aponeuroses are papery, and peel off by sections. The primary regions with thick aponeurosis is in the ventral abdominal region, the dorsal lumbar region, and in the palmar region.

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Ventral abdominal aponeuroses

The ventral abdominal aponeuroses are located just on top of the rectus abdominis muscle. It has for its borders the external oblique, pectoralis muscles, and the latissimus dorsi.

Dorsal lumbar aponeuroses

The dorsal lumbar aponeuroses are situated just on top of the epaxial muscles of the thorax, which are multifidus spinae and Sacrospinalis.

Palmar aponeuroses

The palmar aponeuroses occur on the palms of the hands, and are referred to in the Patrick O'Brian Aubrey–Maturin series of books.

Scalp aponeuroses

The aponeurosis (or galea aponeurotica) is a tough layer of dense fibrous tissue which runs from the frontalis muscle anteriorly to the occipitalis posteriorly.

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References

  • This article incorporates text from the Encyclopædia Britannica Eleventh Edition, a publication now in the public domain.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Aponeurosis". A list of authors is available in Wikipedia.
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