Definition of aponeurosis in English:


nounplural noun aponeuroses/-ˌsēz/

  • A sheet of pearly white fibrous tissue that takes the place of a tendon in flat muscles having a wide area of attachment.

    ‘The superficial branch, which forms the superficial palmer arch, descends a short distance into the palm and curves toward the thumb between the palmer aponeurosis and flexor tendons to form an arch.’
    • ‘The transection of the flexor tendons and the aponeurosis was an unavoidable consequence of these limitations and was standardized in all specimens.’
    • ‘The tendon of plantaris is still located between the aponeuroses of soleus and gastrocnemius.’
    • ‘The gastrocnemius muscle aponeurosis is well defined and thick.’
    • ‘The muscle fibers arise from the intertendinous aponeurosis and intermediate tendon and insert on the inner surface of the mandible.’
    • ‘Other examples of dense regular connective tissue include most ligaments, aponeuroses, and the cornea of the eye.’
    • ‘A slip, radiopalmaris, may arise directly from the radius beneath sublimis and attach to the palmar aponeurosis or the common sheath of the flexor tendons.’
    • ‘The genital branch may bypass the deep inguinal ring running superficial to it in the aponeurosis of the external abdominal oblique muscle.’
    • ‘During placement the lateral digital tendons, through a complex and stratified array of connective tissue sheets and muscles that make up the plantar aponeurosis, pull the scansors into close contact with the locomotor substratum.’
    • ‘Radiographs may show calcific deposits in the extensor aponeurosis or spurring but are frequently normal.’
    • ‘Only when the fused aponeuroses of the two muscles are unusually thickened, the fibers curve downward in front of the spermatic cord and insert onto the iliopectioneal line.’
    • ‘The aponeuroses and muscles connecting the fractured ribs to the non-fractured ribs probably play a major role in transmitting the inspiratory force of the contracting parasternal intercostals to the flail portion of the chest.’
    • ‘The muscle is swung around and sutured to the caudal portion of the defect at the pectoralis major's origin and at the aponeurosis of the external oblique muscle.’
    • ‘Plantar fibromatosis is a rare, benign neoplasm of the plantar aponeurosis.’
    • ‘Dupuytren disease is a connective tissue disorder characterized by contracture involving the palmar aponeurosis.’
    • ‘It has been found lying upon the semilunar fascia of the biceps, and over the aponeurosis of the forearm, instead of beneath those structures.’
    • ‘The blood vessels are seen in large quantities on the surface of the muscular aponeuroses.’
    • ‘The plantar fascia is a thickened fibrous aponeurosis that originates from the medial tubercle of the calcaneus and runs forward to form the longitudinal foot arch.’
    • ‘The tonsils are surrounded by a capsule, a specialized portion of the intrapharyngeal aponeurosis that covers the medial portion of the tonsils and provides a path for blood vessels and nerves through its fibers.’
    • ‘The plantar fascia is a multilayered, fibrous aponeurosis with three portions - medial, central, and lateral.’



/ˌapəno͝oˈrōsəs/ /ˌæpənʊˈroʊsəs/


Late 17th century modern Latin, from Greek aponeurōsis, from apo ‘off, away’ + neuron ‘sinew’+ -osis.