. Anatomy, descriptive and applied. Anatomy. 1038 THE NERVE SYSTEM Circumfiex. supply the outer and Inner heads of the Triceps and Anconeus muscles. _ The branch for the latter muscle is a long, slender filament which descends in the substance of the Triceps to the Anconeus. The external muscular branches supply the Brachioradialis, Extensor Suprascapuiary\ carpi radialis longior, and (usually) the outer part of the I3rachialis anticus muscles. The cutaneous branches are three in number, one internal and two external. The inter- nal cutaneous branch (n. cuia- neus brachii posterior) arises in
. Anatomy, descriptive and applied. Anatomy. 1038 THE NERVE SYSTEM Circumfiex. supply the outer and Inner heads of the Triceps and Anconeus muscles. _ The branch for the latter muscle is a long, slender filament which descends in the substance of the Triceps to the Anconeus. The external muscular branches supply the Brachioradialis, Extensor Suprascapuiary\ carpi radialis longior, and (usually) the outer part of the I3rachialis anticus muscles. The cutaneous branches are three in number, one internal and two external. The inter- nal cutaneous branch (n. cuia- neus brachii posterior) arises in the axillary space with the inner muscular branch. It is of small size, and passes through the axilla to the inner side of the arm, supplying the integument on its posterior aspect nearly as far as the olecranon. In its course it crosses beneath the intercosto- humeral nerve, with which it communicates. The external cutaneous branch (n. cutaneus antehrachii dorsalis) divides into two branches, and each one perforates the outer head of the Triceps muscle at its attachment to the humerus. The upper and smaller one passes to the front of the elbow, lying close to the cephalic vein, and supplies the integument of the lower half of the arm on its anterior aspect. The lower branch pierces the deep fascia below the insertion of the Deltoid muscle, and passes down along the outer side of the arm and elbow, and then along the back part of the radial side of the fore- arm to the wrist, supplying the integument in its course, and joining, near its termi- nation, with the posterior cutaneous branch of the mus- culocutaneous nerve. The Radial Nerve (ramus superficialis n. radialis) (Fig. 770), passes along the front of the radial side of the forearm to the commencement of its lower third. It lies at first a little to the outer side of the radial artery, concealed beneath the Brachioradialis. In the middle third of the forearm it lies beneath the same muscle, in close relation with the outer
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
