OCR Text |
Show 1895.] ANATOMV OF CHAUNA CHAVARIA. 355 Ceratoglossus. Only the second part present, and that was as in Palamedea. Ceratohyoid as in Palamedea. Hypoglossals. There is a well-marked hypoglossus rectus arising fleshy at each side from the entoglossum, and ending in a long-tendon running forward to the tip of the tongue. Undoubtedly this muscle is what we described as the first part of ceratoglossus in Palamedea. Thyrohyoid. A well-marked muscle at each side arising from the side of the basihyal and spreading out over the thyroid cartilage. This we described in Palamedea. as belonging to the system of the sternohyoid. Caudal Muscles. The five muscles were exactly as in Palamedea, except that the inner thinner portion of the ilio-coccygeus was absent. Muscles of the Shoulder-girdle. Rhomboideus externus and internus, serratus anticus, pectoralis minor, sterno-coracoid, coracobrachicdis longus,coracobrachialis and c. internus, deltoides minor, teres major, subscapularis, expansor secundariorum, biceps, triceps, extensores metacarpi radialis ulnaris, ectepicondylo-ulnaris and radialis, extensor digitorum extensor indicis longus, pronator sublimis, brachiedis inferior, flexor digitorum sublimis, ulni-metacarpalis ventralis, abductor pollicis, flexor pollicis, abductor indicis, flexor digiti III, and interossei dorsalis et palmaris were as we described them in Palamedea. Serratus posticus. The origins were a rib further back than in Palamedea. Pars metapatagialis arose from the sixth complete rib. Part two came from the fourth, fifth, and sixth ribs. Latissimus dorsi differed from that in Palamedea only by the absence of a metapatagial slip from the tendon of insertion of the posterior part. Pectoralis major arose partly from the posterior sternal rib. Coracobrachicdis brevis (subcoracoicleus) was represented only a ligament. Deltoides major was not divided into two portions, and the upper region of its insertion was not tendinous. Patagialis arose as in Palamedea, and the general disposition of the tendons was as in Palamedea. But, as Fiirbringer has already figured, the brevis ligament unites not only with the extensor metacarpi radialis, but passes over to the ulna. As in Palamedea there is no biceps patagialis. Teres minor (supraspinatus) was not present. Anconceus longus. This is as in Palamedea, but there were no tendinous bars, uniting the tendons of the head and of the accessory head. Extensor longus pollicis. The ulnar head was very small and had no tendon. Pronator profundus was larger than pronator sublimis. |