The pronator radii teres - named from its action and somewhat cylindrica. shape - is a thick ribbon-shaped muscle.

The flexor carpi radialis - named from its action as a flexor of the wrist and its position on the radial side of the joint - is flat and fusiform.

The triceps extensor cubiti (french: Triceps brachial), named from its three heads and its action - formi a thick fusiform sheet wrapping round the posterior surface of the humerus in iti whole length.

The flexor profundus digitorum- named from its action upon the fingers and jts relation to their superficial flexor - is a strong fusiform sheet of muscular fibres ,vhich wraps round the anterior and inner surfaces of the ulna, and divides below into four tendons for the fingers.

The flexor sublimis digitorum - named from its action as a flexor of the fingers, and from its position in relation to the deep flexor (sublimis = superficial) - is a fusiform sheet, with two heads above, and dividing into four tendons below.

The palmaris longus - named from its length and its insertion upon the palm bf the hand - is flat and fusiform.

The flexor carpi ulnaris- named from its influence upon the wrist and its position - is a thick sheet of muscular fibre, somewhat fusiform in shape, which wraps round the convex ulnar border of the forearm.

The pronator quadratus is a thin quadrilateral sheet, named from itj action and its nearly square shape.

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