Observations on the anatomy of Nycticebus tardigradus / by St. George Mivart and James Murie.

  • Mivart, St. George Jackson, 1827-1900.
Date:
[1865]
Catalogue details

Licence: Public Domain Mark

Credit: Observations on the anatomy of Nycticebus tardigradus / by St. George Mivart and James Murie. 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.

    8/18 (page 246)
    Profs. S. Van tier Kolk and Vrolik fail altogether to distinguish the flexor profundus digitorum from the flexor longus pollicis, and omit all notice of the arrangement and distribution of the tendons except that of the pollex. In the Hunterian Lectures, 1864, Prof. Huxley1 described these muscles in Nycticebus tardigradus, and with that description our observations agree, except as regards the very delicate tendon which we found joining the index tendon of the flexor longus pollicis. The *flexor longus pollicis is a very distinct muscle, and as large as both the flexor sublimis and flexor profundus taken together. It consists of two separate bellies, one of which arises from the inner condyle and intermuscular septa, the other from the middle third of the anterior surface of the radius and from the interosseous liga- ment. These two muscular bundles join and give origin to a very large tendon, which bifurcates, the smaller portion joining the ten- don of the flexor profundus to form the long flexor tendon of the pollex; the other portion again divides, one part again subdividing, its two subdivisions constituting the long flexor tendons of the index and third digits respectively, the other part joins the tendon of the flexor profundus to form the long perforating tendon of the fourth digit, as before mentioned (figs. 2 & 3, F. l.p). Fig. 3. 5 Diagram of the tendons of the palm of the hand. The numbers correspond to the digits, the letters to the same muscles as in fig. 2. This agrees well with Professor Huxley’s description already re- ferred to. From what Meckel2 says, it would appear that in Loris this muscle is united with the preceding, as in so many other ot the Primates, including Tarsius3. 1 Med. Times and Gass. 1864, Aug. 6th, vol.'ii. no. 736, p. 145. 2 Anat. Comp. vol. vi. p. 341. 3 Burmeister, p. 60, t. 3. fig. 3, no. 34. [8]