Variations in human myology observed during the winter session of 1867-68 at King's College, London / by John Wood.

  • Wood, John, 1825-1891.
Date:
1868
Catalogue details

Licence: Public Domain Mark

Credit: Variations in human myology observed during the winter session of 1867-68 at King's College, London / by John Wood. 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.

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    of the perforans supplied the perforated tendon of the little toe. In the right foot of No. 11 a long slip from the Jlexor-longua-digitorum tendon joined that of the flexor brevis going to the middle toe—as before described with the varieties of the former muscle. In the left foot of the same sub- ject a similar tendinous shp to the flexor brevis tendon of the middle toe arose from the fibres of the accessorius. Out of 08 males the outer tendon of the flexor brevis digitorum has been found absent in 10, viz. 6 in both feet, 3 in the right, and 1 in the left only. Out of 34 females it has been found absent in 5, viz. in both feet in 4, and in 1 in the right only. This gives a proportion of 15 per cent, and an exact equality in the two sexes. In 4 of these, viz. 3 males and 1 female, a substitutory sUp of muscle and tendon arose from the corre- sponding tendon of the perforans, as in the Quadrumana. In one this was connected partly with the fibres of the accessorius, and partly had a separate origin from the tubercle of the calcaneum. 54. Abductor hallucis.—A considerable shp from this muscle to the second toe, arising with the front fibres, and inserted into the base of the first phalanx, as first found and described by the author in his paper of last year, was seen this year in three males and one female. In one of the males and in the female it was found in both feet, in one male in the right foot, and in the third in the left foot only. A similar slip is said by Meckel to be found in the foot of the White Bear. Out of 40 males this slip has been found in 5, in 2 in both feet, in 1 in the right, and in 1 in the left foot only. Out of females it has been found in 1 only, in both feet. 55. Opponens minimi digiti.—This muscle, first pointed out by Henle as frequently present in the human foot, has been noted this year in 6 sub- jects out of 36, in 1 male and 5 females. In 4 it was found in both feet, in 1 in the right and in 1 in the left foot only. In 1 female in last year's series it was found, remarkably large, in both feet. The author has found this muscle largely developed in the Orang. In the Bonnet-Monkey it was not present. It is figured in Cuvier and Laurillard's plates as very large in the foot of the Lion and Panther. 56. Sundries.—Besides the three-headed gastrocnemius already de- scribed, we have in this column, in the male (No. 4). an entirely detached portion of the iliacus internus, arising from the middle of the iliac crest by a thin tendinous aponeurosis, forming a flat muscular slip, which was inserted into the common tendon of the psoas and iliacus muscles. In both feet of the female (No. 20) the abductor minimi digiti was provided ;yith two distinct tcndous. In the left leg of the female (No. 22) a con- siderable fleshy slip from the adductor brevis joined the tendon of the obturator externus. In the right foot of the female (No. 27) the tendi- nous slip from the insertion of the tibialis posticus to the outer cuneiform bone, which usually gives part origin to the flexor brevis halhicis, passed wholly into that muscle without being connected with the cuneiform. In