| aponeurosis of internal abdominal oblique muscle | <anatomy> Broad, flat tendinous portion of the internal abdominal oblique muscle. The fleshy fibres of the muscle end in the aponeurosis lateral to the semilunar line. The uppermost portion of the aponeurosis is attached to the outer surfaces and lower borders of the seventh to ninth costal cartilages. Of the portion extending between the costoxiphoid margin and the pubis, the upper two-thirds splits into anterior and posterior laminae at the lateral border of the rectus abdominis muscle to contribute to the anterior and posterior walls of the sheath of the rectus abdominis muscle as they extend to the midline linea alba. The lower third of the aponeurosis does not split but joins the aponeuroses of the external abdominal oblique and transversus abdominis muscles to form the anterior wall of the sheath of the rectus abdominis muscle. The fibres of the portion of the aponeurosis contributing to the rectus sheath decussate with those of the contralateral aponeurosis in the linea alba. The lowermost portion of the aponeurosis blends with the aponeurosis of the transversus abdominis muscle to form the conjoint tendon, attaching to the pubic crest and often the pecten pubis, thus forming the posterior wall of the inguinal canal at the superficial inguinal ring. See: cremasteric fascia, conjoint tendon, rectus sheath. (05 Mar 2000) |
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| aponeurosis of investment | A fibrous membrane covering and keeping in place a muscle or group of muscles. (05 Mar 2000) |
| aponeurosis of origin | A tendinous expansion serving as the attachment of origin of a broad muscle. (05 Mar 2000) |
| aponeurosis of vastus muscles | See: patellar retinaculum, medial patellar retinaculum, lateral patellar retinaculum. (05 Mar 2000) |
| aponeurosis palatina | The expanded tendons of the tensor veli palatini muscles in the anterior two-thirds of the soft palate to which the other palatine muscles attach. Synonym: aponeurosis palatina. (05 Mar 2000) |
| aponeurosis palmaris | The thickened, central portion of the fascia ensheathing the hand; it radiates toward the bases of the fingers from the tendon of the palmaris longus muscle. Synonym: aponeurosis palmaris, Dupuytren's fascia, palmar fascia. (05 Mar 2000) |
| aponeurosis pharyngea | The fibrous coat of the pharyngeal wall situated between the mucous and muscular coats; it is attached above to the basilar part of the occipital bone, and the petrous part of the temporal bone. This layer and the mucosa which lines it forms the wall of the non-muscular pharynx (pharyngeal vault) above the superior pharyngesl constrictor muscle. Synonym: fascia pharyngobasilaris, aponeurosis pharyngea, tela submucosa pharyngis. (05 Mar 2000) |
| aponeurosis plantaris | The very thick, central portion of the fascia investing the plantar muscles; it radiates toward the toes from the medial process of the calcaneal tuberosity and gives attachment to the short flexor muscle of the toes. Synonym: aponeurosis plantaris, plantar fascia. (05 Mar 2000) |
| bicipital aponeurosis | Aponeurosis bicipitalis, radiating fibres from the tendon of insertion of the biceps which form a triangular band passing obliquely across the hollow of the elbow to the ulnar side and becoming merged into the deep fascia of the forearm. Formerly called "grace Dieu" fascia, it serves to protect the brachial artery and median nerve during phlebotomy of median cubital vein. Synonym: aponeurosis musculi bicipitis brachii, bicipital fascia, lacertus fibrosus, semilunar fascia. (05 Mar 2000) |
| palatine aponeurosis | The expanded tendons of the tensor veli palatini muscles in the anterior two-thirds of the soft palate to which the other palatine muscles attach. Synonym: aponeurosis palatina. (05 Mar 2000) |
| palmar aponeurosis | The thickened, central portion of the fascia ensheathing the hand; it radiates toward the bases of the fingers from the tendon of the palmaris longus muscle. Synonym: aponeurosis palmaris, Dupuytren's fascia, palmar fascia. (05 Mar 2000) |
| Petit's aponeurosis | The posterior layer of the broad ligament of the uterus. Origin: P. Petit (05 Mar 2000) |
| plantar aponeurosis | The very thick, central portion of the fascia investing the plantar muscles; it radiates toward the toes from the medial process of the calcaneal tuberosity and gives attachment to the short flexor muscle of the toes. Synonym: aponeurosis plantaris, plantar fascia. (05 Mar 2000) |
| Sibson's aponeurosis | The thickened portion of endothoracic fascia extending over the cupola of the pleura and reinforcing it; it attaches to the inner border of the first rib and to the transverse process of the seventh cervical vertebra. Synonym: membrana suprapleuralis, Sibson's aponeurosis, Sibson's fascia. (05 Mar 2000) |
| Denonvilliers' aponeurosis | A fascial layer that extends superiorly from the central tendon of the perineum to the peritoneum between the prostate and rectum. Synonym: septum rectovesicale, Denonvilliers' aponeurosis, rectovesical fascia, Tyrrell's fascia. (05 Mar 2000) |