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"abc, deltoid muscle; d, coraco branchfalls muacle; r, r, triceps; e, i, extensors of wrist and long supinator of the hand; km, flexor of fingers and radial and ulnar sides of the wrist, and l, palm of the hand, or palmaris longus; p, palmaris brevis; q, palmar fascia; o, biceps." — Chambers' Encyclopedia, 1875

Arm Muscles

"abc, deltoid muscle; d, coraco branchfalls muacle; r, r, triceps; e, i, extensors of wrist and long…

The muscles of the back forearm. 1, biceps; 2, brachialis internus; 3, triceps; 4, pronator radii teres; 5, flexor carpi radialis; 6, palmaris longus; 7, flexor sublimus digitorum; 8, flexor carpi ulnaris; 9, palmar fascia; 10, palmaris brevis; 11, abductor pollicis; 12, flexor brevis pollicis; 13, supinator longus; 14, extensor ossis metacarpi pollicis.

Back Forearm Muscles

The muscles of the back forearm. 1, biceps; 2, brachialis internus; 3, triceps; 4, pronator radii teres;…

The bicep muscle and the arm bones, to illustrate how, under ordinary circumstances, the elbow joint is flexed when the muscle contracts.

Biceps

The bicep muscle and the arm bones, to illustrate how, under ordinary circumstances, the elbow joint…

"The superficial veins in front of the elbow-joint. B', tendon of biceps muscle; Bi, brachialis internus muscle; Pt, pronator teres muscle; 1, median nerve; 2, 3, 4, nerve-branches to the skin; B, brachial artery, with its small accompanying veins; cep, cephalic vein; bas, basilic vein; m', median vein; *, junction of a deep-lying vein with the cephalic." —Martin, 1917

Elbow-Joint

"The superficial veins in front of the elbow-joint. B', tendon of biceps muscle; Bi, brachialis internus…

The muscles of the back forearm. 1, biceps; 2, brachialis internus; 3, biceps; 4, supinator longus; 5, extensor carpl radialis longior; 6, extensor carpi radialis brevior; 7, insertion of these mscles; 8, extensor communis digitorum; 9, extensor communis digitorum; 10, extensor carpi ulnaris; 11, anconeus; 12, flexor carpi ulnaris; 13, extensor minor pollicis; 14, extensor major pollicis; 15, posterior annular ligament.

Front Forearm Muscles

The muscles of the back forearm. 1, biceps; 2, brachialis internus; 3, biceps; 4, supinator longus;…

The upper bicep of the right arm. Included are the tendons, blood vessels, and its nerve.

Bicep Muscle

The upper bicep of the right arm. Included are the tendons, blood vessels, and its nerve.