aponeurosis


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Related to aponeurosis: Bicipital aponeurosis, Plantar aponeurosis

aponeurosis

[¦ap·ə‚nu̇′rō·səs]
(anatomy)
A broad sheet of regularly arranged connective tissue that covers a muscle or serves to connect a flat muscle to a bone.
References in periodicals archive ?
Functional characteristics of the foot and plantar aponeurosis under tibiotalar loading.
2,16,17) These shear forces place stress on the inguinal wall musculature and can lead to attenuation of local soft tissues, including the following: tearing of the transversalis fascia or conjoined tendon, abnormalities at the insertion of the rectus abdominis muscle, avulsion of the internal oblique muscle fibers at the pubic tubercle, intrasubstance tear of the internal oblique muscle, and attenuation of the external oblique muscle and aponeurosis.
This can be done by cutting a straight section away, or by plication, where the aponeurosis is folded upon itself and sutured down
flexor cruris lateralis arises mainly by fleshy fibers from the caudal end of the dorsolateral crest of the ilium, by aponeurosis from the processus transversus of the first free caudal vertebra.
Epithelioid sarcoma has many histopathologic mimics, including benign and malignant conditions, such as granuloma annulare, necrobiosis lipoidica, chronic granulomatous inflammation (especially rheumatoid nodules), fibrous histocytoma, nodular fasciitis, fibromatosis, giant cell tumor of tendon sheath, melanoma, clear-cell sarcoma of the tendon and aponeurosis (amelanotic melanoma of soft part), schwannoma, metastatic squamous cell carcinoma, metastatic adenocarcinoma (especially renal cell carcinoma), synovial sarcoma, epithelioid hemangioendothelioma, epithelioid leiomyosarcoma, and malignant extrarenal rhabdoid tumors of the soft tissue.
In those cases a tear in the external oblique aponeurosis was shown to cause a posterior wall defect of the inguinal canal (Figure 2 and 3).
The plexus sheath cannot be identified as a distinctive structure, but its position is inferred from identification of aponeurosis investing adjacent muscles.
A feature of its fleshy attachment to the tibia is that it is covered by dense fascia, which is particularly thick medially, thereby acting as an aponeurosis for the semimembranosus muscle (Grant and Basmajian 1965, Moore and Dalley 2006).
A great variety of abnormalities have been suggested: an imbalance between flexor and extensor forces, abnormal insertions or strength of the lumbrical muscle, shortening and thickening of the collateral ligaments, anomalous flexor digitorum superficialis or profundus, faulty development of the dorsal extensor aponeurosis, and malformations of the retinaculum cutis in the palmar fascia and natatory ligaments (13).
Aggressive fibromatosis is believed to arise from within muscles or the muscular aponeurosis.
6) The distal tendon spirals in a predictable pattern distally to the bicipital aponeurosis, spiraling clockwise in left elbows and counterclockwise in right elbows.
The adductors of the thumb insert onto the extensor expansion through its aponeurosis, which lies superficial to the ulnar collateral ligament.