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Three common palmar digital arteries arise from the convexity of the superficial palmar arch and proceed distally on the second, third, and fourth lumbricales muscles. Alternative names for these arteries are: [ 1 ] common volar digital arteries , [ 2 ] ulnar metacarpal arteries , arteriae digitales palmares communes , [ 3 ] or aa. digitales ...
The dorsal branch of ulnar nerve arises about 5 cm. proximal to the wrist; it passes backward beneath the Flexor carpi ulnaris, perforates the deep fascia, and, running along the ulnar side of the back of the wrist and hand, divides into two dorsal digital branches; one supplies the ulnar side of the little finger; the other, the adjacent sides of the little and ring fingers.
Recently a Jurassic theropod intermediate fossil Limusaurus has been found in the Junggar Basin in western China that has a complex mix: it has a first digit stub and full second, third and fourth digits but its wrist bones are like those that are associated with the second, third and fourth digits while its finger bones are those of the first ...
Proper palmar digital arteries anastomose freely in the subcutaneous tissue of the finger tips and by smaller branches near the interphalangeal joints. Dorsal branches supplied by the arteries anastomose with the dorsal digital arteries, and supply the soft parts on the back of the second and third phalanges, including the matrix of the fingernail.
The proper palmar digital nerves of the ulnar nerve are nerves of the hand.. The superficial branch of the ulnar nerve divides into a proper palmar digital nerve, which supplies the medial side of the fifth digit and a common palmar digital nerve which divides into two proper palmar digital nerves that supply the adjacent sides of the fourth and fifth digits.
The dorsal branch of the ulnar nerve divides into two dorsal digital branches; one supplies the ulnar side of the little finger; the other, the adjacent sides of the little and ring fingers. It also sends a twig to join that given by the superficial branch of the radial nerve for the adjoining sides of the middle and ring fingers, and assists ...
The medial portion of the nerve divides into two common palmar digital nerves (common volar digital nerves). The first of these gives a twig to the second lumbricalis and runs toward the cleft between the index and middle fingers , where it divides into two proper digital nerves for the adjoining sides of these digits;
The common palmar digital nerves of the ulnar nerve are nerves of the hand. The nerve branches off the superficial branch of the ulnar nerve and runs toward the cleft between the ring and little fingers.
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