. Cunningham's Text-book of anatomy. Anatomy. MUSCLES ON ANTEEIOE AND MEDIAL ASPECTS OF FOEEAEM. 389 Brachialis muscle (insertion) \ Supinator muscle (ulnar origin) Flexor digitorum sub- limis (ulnar origin) Pronator teres (ulnar origin) Flexor poflicis longus (occasional origin) Biceps brachii (insertion) Flexor digi- torum sublimis (radial origin) Pronator teres • (insertion) Flexor pollicis longus (origin) Flexor digitorum profundus (origin) process. It arises laterally from the medial half of the interosseous membrane in its middle third (Figs. 348, p. 389, and 349, p. 390), and medially f
. Cunningham's Text-book of anatomy. Anatomy. MUSCLES ON ANTEEIOE AND MEDIAL ASPECTS OF FOEEAEM. 389 Brachialis muscle (insertion) \ Supinator muscle (ulnar origin) Flexor digitorum sub- limis (ulnar origin) Pronator teres (ulnar origin) Flexor poflicis longus (occasional origin) Biceps brachii (insertion) Flexor digi- torum sublimis (radial origin) Pronator teres • (insertion) Flexor pollicis longus (origin) Flexor digitorum profundus (origin) process. It arises laterally from the medial half of the interosseous membrane in its middle third (Figs. 348, p. 389, and 349, p. 390), and medially from the deep fascia of the forearm dorsal to the origin of the flexor carpi ulnaris. The muscle forms a broad thick tendon which passes beneath the transverse carpal ligament, covered by the tendons of the flexor digitorum sublimis, and enveloped in the same synovial sac, and divides in the palm into four tendons for insertion into the terminal phalanges of the fingers. The tendon associated with the forefinger is usually separate from the rest of the tendons in its whole length. Each tendon enters the digital sheath of the finger be- neath the tendon of the flexor digitorum sublimis, which it pierces opposite the first phalanx, and is finally inserted into the base of the terminal phalanx. Like the tendons of the flexor sublimis, those of the deep flexor are provided with vincula, viz., vincula brevia attached to the capsule of the second inter- phalangeal articulation, and vincula longa, which are in this case connected to the tendons of the subjacent flexor digitorum sublimis. Mm. Lumbricales. — The lumbricales are four small cylindrical muscles associated with the tendons of the flexor digitorum profundus in the palm of the hand. The two lateral muscles arise each by a single head from the radial sides of the tendons of the flexor digitorum profundus destined respectively for the fore and middle fingers. The two medial muscles arise, each by two heads, from the adjacent
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
