Practical Anatomy of the Rabbit

Practical Anatomy of the Rabbit

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 edition. Excerpt: ...of the humerus in conjunction with the semilunar notch of the ulna and the corresponding articular surface of the head of the radius. It is a hingejoint, or ginglymus, permitting motion in one plane, i.e., extension and flexion of the forearm. The trochlear surface of the humerus, however, has a slight spiral trend, the anterior portion being medial in comparison with the posterior portion. Through the immovable articulation provided by the respective proximal and distal ends of the bones, and also through the interosseous ligament, the radius and ulna are unable to change their positions with respect to one another; in other words, the radius is unable to rotate on an axis formed by the ulna, the fore foot being fixed in a position comparable to that of pronation in the human hand (cf. p. 33). THE CARPUS. The carpus (Fig. 39) comprises nine small elements, the wrist or carpal bones (ossa carpi), which are interposed between the forearm and the digits. They are arranged in two main rows, namely, a proximal row, the elements of which are articulated with the radius and ulna; and a distal row, the elements of which are articulated with the five bones of the metacarpus. Enumerated from the medial side of the wrist laterad, the proximal row contains four elements, namely, the navicular, lunate, triquetral and pisiform bones. The navicular and lunate are articulated with the distal extremity of the radius; the triquetral with the styloid process of the ulna. The pisiform bone lies on the ventral surface of the extremity of the ulna, and is therefore not exposed to the dorsal surface of the wrist. The distal row contains five elements, namely, the greater multangular, lesser multangular, central, capitate, and hamate bones. The first, second, more

Product details

  • Paperback | 80 pages
  • 189 x 246 x 4mm | 159g
  • United States
  • English
  • black & white illustrations
  • 1236808398
  • 9781236808394