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At the lateral side of the median nerve, where it lies in contact with the biceps muscle, is situated a well-defined and easily isolated bundle of fibres which supplies the pronator teres, the flexor carpi radialis, and the palmaris longus muscles.
With a book on her lap, and her own round white arm going through all manner of queer evolutions, she was placidly repeating, "Deltoides, Biceps, Triceps, Pronator, Supinator, Palmanis, Flexor carpi ulnaris "
The turning of the hand with the palm downwards. Pronator. The group of muscles which turn the hand palm downwards. A general term for the albuminoid constitutents of the body. A first-formed organized substance; primitive organic cell matter. Wing-like. One of a class of animal bases or alkaloids formed in the putrefaction of various kinds of albuminous matter.
In a case of spastic contracture of the pronator muscles of the forearm, for example, an incision is made along the line of the median nerve above the bend of the elbow.
The position of the upper limb is typical: the arm and forearm hang close to the side, with the forearm extended and pronated; the deltoid, spinati, biceps, brachialis, and supinators are paralysed, and in some cases the radial extensors of the wrist and the pronator teres are also affected. The patient is unable to supinate the forearm or to abduct the arm, and in most cases to flex the forearm.
The flexor carpi radialis can then be joined up with the extensor digitorum communis by passing its tendon through an aperture in the interosseous membrane, or better still, through the pronator quadratus, as there is less likelihood of the formation of adhesions when the tendon passes through muscle than through interosseous membrane.
And he afterwards quotes from Weitbrecht, who had "observé dans un cas l'absence simultanée aux deux mains et aux deux pieds, de quelques doigts, de quelques metacarpiens et metatarsiens, enfin de quelques os du carpe et du tarse." P.t. Pronator teres. F.s. Flexor sublimis digitorum. F.p. Flexor profundus digitorum. F.l.p.
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