Ligaments : their nature and morphology / by John Bland Sutton.
- Sutton, John Bland.
- Date:
- 1887
Licence: Public Domain Mark
Credit: Ligaments : their nature and morphology / by John Bland Sutton. Source: Wellcome Collection.
Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)
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![Chap, i.] PALMAR AND PLANTAR FASCLA. muscle, they are at least the morphological representatives of that structure. As the muscle occurs within the mam- malian circle, it is not unreasonable to regard these mem- branes as degenerated muscles. If this view be accepted, then the anterior interosseous arteries and nerves are to be regarded as those originally ministering to this re- markable muscle. The fibrous tunnel in which they lie is formed as a consequence of the degeneration of the muscle which they once supplied. Itis quite possible, that, the popliteus is a remnant of the original peroneo-tibial muscle, also the rotator fibulae of the gibbon. This Palmar and Plantar Eascle. The palmar and plantar fasciae are structures so well known to the student of human anatomy, that it would be tedious even to recapitulate the details connected with their anatomy. It is sufficient for the purposes of morphology to remember that the palmar fascia is connected superiorly with the anterior annular ligament, whilst the middle, strongest portion of the fascia, is directly continuous with the. tendon of the palmaris longus muscle. This muscle, so far as man is concerned, presents itself normally as a feeble structure; its importance may be estimated from the fact that itjs frequently absent without in the least im- pailinjLjhejifiHEy of the limb. It is calculated that this muscle is wanting in j£n_Dfir-cent. of all bodies examined. Usually it consists of a definite belly with a rounded tendon, occasionally two bellies are present with a ten- dinous intersection; the muscle may end in the fascia of the forearm, or may be wholly represented by ligament. In many animals, e.g., the armadillo and aard vark, the palmaris longus is large and important, muscular throughout its whole extent, sending slips to all the](https://iiif.wellcomecollection.org/image/b21290076_0027.jp2/full/800%2C/0/default.jpg)
