Deep_Muscles_of_Flexor_Compartment_of_Forearm.pdf

 Deep_Muscles_of_Flexor_Compartment_of_Forearm.pdf

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Dr.Sherif Fahmy

August 15, 2019
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Transcript

  1. 3.

    Pronator teres Flexor carpi radialis Palmaris longus Flexor carpi ulnaris

    Flexor digitorum superficialis (cut) Flexor digitorum profundus Flexor pollicis longus Pronator quadratus Flexor retinaculum Lumbricals Deep muscles of forearm Lateral Medial
  2. 4.

    Flexor digitorum profundus Flexor pollicis longus Pronator quadratus Origin of

    flexor digitorum profundus Ulnar aponeurosis Origin of pronator quadratus Origin of flexor pollicis longus m. Insertion of pronator quadratus m. Interosseous membrane
  3. 6.

    Interosseous membrane Flexor digitorum profundus from upper ¾ of anterior

    and medial surfaces of ulna (main origin) Flexor retinaculum Ulnar aponeurosis
  4. 9.

    Action of flexor digitorum profundus • Flexes all joints of

    the medial four fingers. • Flexes the wrist. Nerve supply -Medial ½ from ulnar nerve. -Lateral ½ from anterior interosseous nerve (branch from median)
  5. 11.

    Interosseous membrane Flexor retinaculum Flexor pollicis longus Tendon of flexor

    pollicis longus Upper 2/3 of anterior surface of radius Insertion to palmar aspect of distal phalanx of thumb
  6. 12.

    Tendon of flexor carpi radialis Flexor retinaculum Tendon of flexor

    pollicis longus Tendons of flexor digitorum superficialis Tendons of flexor digitorum profundus
  7. 13.

    Action of flexor pollicis longus • Flexes all joints of

    the thumb. • Assists in flexion of the wrist. Nerve supply -Anterior interosseous nerve (branch from median)
  8. 15.

    Pronator Quadratus M. Origin: from oblique ridge on the lower

    ¼ of anterior surface of the shaft of ulna Insertion: into lower ¼ of anterior and medial surfaces of radius
  9. 17.

    Action of pronator quadratus Pronation of forearm on radioulnar joints.

    Nerve supply -Anterior interosseous nerve (branch from median)