Page:A descriptive catalogue of the Warren Anatomical Museum.djvu/144

122 "Neither pectoralis major nor minor were found.

"A serratus magmis, on each side, arises from the ribs, and is inserted as usual into the base of the scapula on the same side with itself.

"A right and left latissimus dorsi, supra and infra-spinatus, teres major and minor, are all inserted into their respective portions of the humerus on each side. The deltoid arises equally from the two portions of scapula and the end of the compound clavicle; it is inserted symmetrically into the humerus. A subscapularis arises from each base of the scapula, but the two are inserted into each other by the union of the tendons, just behind the glenoid cavity.

"The triceps has two long heads, one arising from the edge of each half of the scapula, and two short heads arising from the side of the humerus, and is inserted as usual into the olecranon.

"In the place of the biceps and brachialis is a single muscle, arising from the humerus by a pointed head on each side of the deltoid, and in this respect resembling the brachialis; but, like the biceps, its tendon is inserted into the radius. There was no long head. Its action would be that of the biceps.

"The following muscles were repeated symmetrically on the two sides of this third arm:

"Supinator longus and S. brevis.  "Extensor carpi radialis longior and brevior. "Extensor carpi ulnaris. "''Extensor carpi digitorum communis.  "Extensor longus pollicis. "Abductor longus''.

"There were no flexors or pronators, nor any extensor proprius of the index or little fingers.

"Below the ribs and their cartilages on this side of the fœtus, some ill-defined muscles occupied the place of the broad muscles of the abdomen, but could not be identified as such.

"A psoas and iliacus internus existed on each side, but both were inserted into the single trochanter minor on the front of the femur.

"A glutœus maximus arose from each side of the