On the myology of Hyrax capensis / by James Murie and St. George J. Mivart.

  • Murie, James.
Date:
[1865]
Catalogue details

Licence: Public Domain Mark

Credit: On the myology of Hyrax capensis / by James Murie and St. George J. Mivart. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    4/24 (page 332)
    The connexion of this second part of the stemo-cleido-mastoid with the mandible offers an interesting resemblance to the attach- ment of the same muscle in the Horse. Meckel describes this muscle, in the Hyraco, as connected with the mastoid process by a strong and long tendon *. In the Guinea-pig this portion of the muscle did notarise from the jaw, but from the skull, as usual. The third part of the stemo-cleido-mastoid is very slender, and not unlike an omo-hyoid in appearance (see fig. 3, S. c. m. 3). It arises from the paramastoid, and joins deeply the conjoined portions of the two foregoing parts of this muscle. This may be what Meckel alludes to in the passage just referred to, and appears also to be the troisihne ventre' spoken of by him, at page 1(32, as being often found in Man. Fig. 3. Diagrammatic view of superficial muscles of the neck. P. m. Platysma myoides, its attachments to the lower jaw and forearm ; above, it is cut open and drawn hack hy hooks to expose 5. c. m. 3, the third small portion of the sterno-cleido-mastoid. C. h. Cephalo-humeral. S. sc. Sterno- scapular. The longus colli has attachment upon the ventral surface of the cervical vertebrae, the 2nd to 7th inclusive, and is inserted in the thorax, on the bodies of the first six dorsal vertebrae. The rectus capitis anticus major arises from the cervical verte- brae, from the Cth to the 3rd, and is inserted into the basioccipital. We found no trace of the rectus capitis anticus minor, at least as a separate muscle. The rectus lateralis is well developed, arising from the transverse process of the atlas, chiefly its anterior surface, and being inserted into the paramastoid. * Anat. Comp. tome vi. p. 1G3. [4]