. Text-book of operative surgery . Median n. Palmaris longus tendon, Ant. annular ligt. M f FlG. 121.—Median nerve, anterior interosseous nerve, interosseous artery. SPINAL NERVES H7 of flex. sublim |_£to 4th finger. j tcial palmar arch Palmar fascia. Opponens polllcis m. Median n. (branclito middle andl ring fingers). Median n. (brancIi toindex and thumb). Deep palmar arcli,termination ofdeep branch ofulnar nerve. Adductor poUicis m. ^7- Ist lumbrical m. Tendon of Fig. 122.—Superficial palmar arch (left). Deep palmar arch (right), with two branches of median ne
. Text-book of operative surgery . Median n. Palmaris longus tendon, Ant. annular ligt. M f FlG. 121.—Median nerve, anterior interosseous nerve, interosseous artery. SPINAL NERVES H7 of flex. sublim |_£to 4th finger. j tcial palmar arch Palmar fascia. Opponens polllcis m. Median n. (branclito middle andl ring fingers). Median n. (brancIi toindex and thumb). Deep palmar arcli,termination ofdeep branch ofulnar nerve. Adductor poUicis m. ^7- Ist lumbrical m. Tendon of Fig. 122.—Superficial palmar arch (left). Deep palmar arch (right), with two branches of median nerve. 16 & OPERATIVE SURGERY (c) Common Palmar Digital Branches In tlie palm the branches of the median nerve lie on the flexor tendons im-mediately underneath the streng palmar fascia. The two divisions of the nerve,which are distribiited to the first four fingers, may he exposed by the same incisionas that for the deep pahnar arch. An incision is carried through the skin and the strong anterior annnlar ligamentat the junction of the thenar and hypo-thenar eminences. The large nerve lies uponthe common flexor sheath and divides into two divisions, the outer supplying thethenar muscles (with the exception of the adductor), both sides of the thumb, and theouter side of the index finger; the inner supplying the two outer lumbricals, the ulnarside of the index, both sides of the middle and the radial side of the ring finger(Fig. 122). (d) Anterior Interosseous Nerve The Anterior Interos
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