| OCR Text |
Show 548 MB. F. E. BEDDARD ON THE [Nov. 18, 23. The supinator is a small muscle arising from outer condyle of humerus to the inside of and above the common tendon; it is attached to upper surface of radius. 24. The internal anconeus arises from internal condyle of humerus below all the other muscles; it spreads out in a fan-like manner to be inserted on to the ulna superficial to (below) the attachment of the brachialis internus. 25. The brachialis internus is a broad, flat muscle arising from the deep pit on the inside of the humerus; it is inserted on to the ulna close to the internal anconeus. 26. The flexor digiti II. major arises by a moderately long tendon from the inner condyle of humerus ; it is connected by flat tendinous bands with the secondaries; about an inch before the wrist it divides into two tendons, one of which runs forward and is attached to the internal tendon of the wrist; the other, the main tendon of insertion, passes round the wrist, and is inserted on to a considerable portion of the inner anterior margin of the first phalanx of the index ; during the latter part of its course the tendon of this muscle is crossed by that of the 27. Flexor digiti II. minor.-This muscle arises from the middle portion of the radial margin of the ulna, commencing just in front of the insertion of the brachialis internus, and extending as far forward as the origin of the extensor internus ; its tendon passes above that of the flexor major, and is inserted on the anterior edge of the second phalanx of the index, close to its proximal end. 28. The extensor internus manus arises from the distal half of the ulna, commencing just after the attachment of flexor digiti IT. minor ; it is nearly twice the size of the latter ; its tendon passes round to the extensor side of the wing, and is there inserted on to the anterior upper edge of the thumb metacarpal. 29. The extensor poliicis arises from distal half of ulnar margin of radius superficial to origin of extensor indicis and from posterior half of ulna and interosseous membrane; it is inserted on to the extensor margin of metacarpal below the extensor metacarpi radii. 30. The extensor proprius indicis arises from the ulnar margin of radius ; its tendon passes below that of extensor communis digitorum, and receives a short muscular slip from the wrist; it is attached to the extensor margin of the proximal end of the second phalanx of the index. I have not dissected out the intrinsic muscles of the hand. MUSCLES OF THE HIND LIMB. 1. The sartorius arises only from the front end of the ilium ; its insertion is on to the tibia just above the crural. 2. The cruraus arises from nearly the whole of the inner side of the femur; it is inserted by a short tendon on to the head of the tibia, below and to the inside of the insertion of the sartorius. 3. The pectineus is a small delicate muscle arising from the lower margin of the ilium just beneath the origin of the glutaus ; it passes |
