The dissector's manual / by W. Bruce-Clarke and Charles Barrett Lockwood.

  • Clarke, William Bruce.
Date:
[1883]
Catalogue details

Licence: Public Domain Mark

Credit: The dissector's manual / by W. Bruce-Clarke and Charles Barrett Lockwood. Source: Wellcome Collection.

Provider: This material has been provided by the Harvey Cushing/John Hay Whitney Medical Library at Yale University, through the Medical Heritage Library. The original may be consulted at the Harvey Cushing/John Hay Whitney Medical Library at Yale University.

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    extensor muscles should be separated from the outer condyle, in order that the supinator brevis may be properly displayed; the radial artery and musculo- spinal nerve may also be cut away at this stage if they are found to impede the view. The student may now consider what skin incision would require to be made, and what structures removed, in order to expose the supinator brevis. Lastly, the extensors of the thumb and index finger may be cleaned as far as the posterior annular ligament. Dissection of the back of the hand.—The surface markings of this region comprise the following extensor tendons, enumerated in their order from radial to ulnar side : Extensor ossis, and Primi internodii pollicis. Extensor carpi radialis longior and brevior. Extensor secundi internodii pollicis. Extensor indicis. Extensor communis digito- rum. The extensor tendons may be distinguished from each other by observing their relations to the bones and the direction in which they ran. The veins collect the blood from the fingers, and, like the tendons, can best be seen upon the student's own hand. The radial artery lies at the root of the thumb, in the triangular depression between the extensor secundi internodii pollicis and the extensor primi internodii The cuta- neous nerves from the ulnar and radial are given off from their parent trunks a little above the wrist. They wind backwards, passing beneath the tendons of the supinator longus and extensor carpi ulnaris to be distributed to the fingers; the ulnar the same as in the palm, the radial the same as the median in the palm. These branches are so often overlooked, thai £ Extensor minimi digiti. Extensor carpi ulnaris. Posterior radial and ulnar veins. Radial artery. Posterior branches of ulnar and radial nerves.