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  2. Flexor digitorum profundus muscle - Wikipedia

    en.wikipedia.org/wiki/Flexor_digitorum_profundus...

    Flexor digitorum profundus is a flexor of the wrist , metacarpophalangeal and interphalangeal joints. [2] The lumbricals, intrinsic muscles of the hand, attach to the tendon of flexor digitorum profundus. Thus, the flexor muscle is used to aid the lumbrical muscles in their role as extensors of the interphalangeal joints.

  3. Muscles of the hand - Wikipedia

    en.wikipedia.org/wiki/Muscles_of_the_hand

    The median nerve innervates the flexors of the wrist and digits, the abductors and opponens of the thumb, the first and second lumbricals. The ulnar nerve innervates the remaining intrinsic muscles of the hand. [3] [4] All muscles of the hand are innervated by the brachial plexus (C5–T1) and can be classified by innervation: [1] [4] [5]

  4. Muscles of the thumb - Wikipedia

    en.wikipedia.org/wiki/Muscles_of_the_thumb

    As its name suggests, it opposes the thumb, bringing it against the fingers. This is a very important movement, as most of human hand dexterity including grip comes from this action. The abductor pollicis brevis originates on the scaphoid tubercle and the flexor retinaculum. It inserts to the radial sesamoid bone and the proximal phalanx of the ...

  5. Lumbricals of the hand - Wikipedia

    en.wikipedia.org/wiki/Lumbricals_of_the_hand

    The lumbrical innervation always follows the innervation pattern of the associated muscle unit of flexor digitorum profundus (i.e. if the muscle units supplying the tendon to the middle finger are innervated by the median nerve, the second lumbrical will also be innervated by the median nerve).

  6. Common flexor sheath of hand - Wikipedia

    en.wikipedia.org/wiki/Common_flexor_sheath_of_hand

    It contains tendons of the flexor digitorum superficialis and the flexor digitorum profundus, but not the flexor pollicis longus. [2] The sheath which surrounds the flexor digitorum extends downward about halfway along the metacarpal bones, where it ends in blind diverticula around the tendons to the index, middle, and ring fingers.

  7. Flexor digitorum superficialis muscle - Wikipedia

    en.wikipedia.org/wiki/Flexor_digitorum...

    These tendons, along with those of flexor digitorum profundus, are enclosed by a common flexor sheath. The tendons attach to the anterior margins on the bases of the intermediate phalanges of the four fingers. These tendons have a split (Camper's Chiasm) at the end of them through which the tendons of flexor digitorum profundus pass.

  8. Ulnar nerve - Wikipedia

    en.wikipedia.org/wiki/Ulnar_nerve

    Near the wrist, it courses superficial to the flexor retinaculum of hand, but covered by volar carpal ligament to enter the hand. [7] In the forearm it gives off the following branches: [8]: 700 Muscular branches of ulnar nerve - supplies one and a half muscles (flexor carpi ulnaris and the medial half of flexor digitorum profundus) [7]

  9. Cervical spinal nerve 8 - Wikipedia

    en.wikipedia.org/wiki/Cervical_spinal_nerve_8

    Its primary function is the flexion of the fingers, and this is used as the clinical test for C8 integrity, in conjunction with the finger jerk reflex. [4] The particular muscles receive innervation from C8 [3] (shown by specific nerve and spinal nerve segments; muscles in italics only have a minor contribution from C8) :