Licence: Public Domain Mark
Credit: Practical anatomy. 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.
46/600
![runs up the inner side of the arm to about its middle, where it pierces the deep fascia, and, at a variable point unites with the venae comites of the brachial artery to form the axillary vein. To the inner side of the basilic vein and about an inch above the condyle is a lymphatic gland of small size. [This is often enlarged in constitutional sy- philis.] The Radial Vein ascends on the outer side to join the median cephalic and form the Cephalic Vein, which passes up the outer side of the arm [to the interspace between the deltoid and the pectoralis major, pierces the costo- coracoid membrane] and has already been traced to its termination in the axillary vein. The Median Basilic Vein (Fig. 6, n) has important relations, since it lies superficial to the brachial artery, and crosses under the internal cutaneous nerve. It is the vessel usually selected for venesection on account of its size; and protection is afforded to the artery beneath, by the interposition of a process of a fascia (bicipital or semi- lunar) which is connected with the tendon of the biceps, and may now be defined. [In this country the median cephalic is usually selected, if large enough, in order to avoid both the internal cutaneous nerve and especially the artery.] The Median Cephalic Vein (Fig. 6, io) is of smaller size and crosses the tendon of the biceps, close to the outer side of which, and beneath the vein, the external cutaneous nerve makes its appearance and supplies the adjacent parts. Above and to the outer side of the external cutaneous nerve will be found one or two external cutaneous branches of the musculo-spiral nerve, while close to the deltoid may be found a small twig of the circumflex. The deep fascia of the arm is sufficiently seen in follow- ing the superficial vessels and nerves. It is continuous with the fascia of the axilla and forearm, and is attached to ridges above the condyles of the humerus, forming the external and internal intermuscular septa. [These septa should be carefully examined as they divide the anterior muscles of the arm from the posterior, and afford strong origins to both.] The muscles of the front of the arm are now to be cleaned, together with the vessels and nerves, hut the fascia on the upper part of the muscles of the forearm need not be disturbed.](https://iiif.wellcomecollection.org/image/b21020735_0046.jp2/full/800%2C/0/default.jpg)
