Aponeurosis
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| Aponeurosis | |
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| Gray's | subject #104 376 |
Aponeuroses (plural of aponeurosis: απο, "away" or "of", and νευρον, "sinew") are layers of flat broad tendons. 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.
Their primary function is to join muscles and the body parts the muscles act upon.[1]
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[edit] Anterior abdominal aponeuroses
The anterior 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.
[edit] Posterior lumbar aponeuroses
The Posterior lumbar aponeuroses are situated just on top of the epaxial muscles of the thorax, which are multifidus spinae and Sacrospinalis.
[edit] Palmar aponeuroses
The palmar aponeuroses occur on the palms of the hands.
[edit] Anterior and posterior intercostal membranes
The anterior and posterior intercostal membranes are aponeuroses located between the ribs and are continuations of the external and internal intercostal muscles, respectively.
[edit] 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.
[edit] See also
- Aponeurosis of the Obliquus externus abdominis
- Aponeurosis of the Serratus posterior superior muscle
- Plantar aponeurosis
- Inguinal aponeurotic falx
- Bicipital aponeurosis
- Palatine aponeurosis
- Fascia
[edit] References
- This article incorporates text from the Encyclopædia Britannica, Eleventh Edition, a publication now in the public domain.
[edit] References
[edit] External links
- Gray's s104 - Aponeuroses
- Aponeurosis at eMedicine Dictionary
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