. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . oralis major just below its insertion. In theApteryx the dermo-humeralis is inserted fleshy intothe proximal part of the humerus (Owen). In eithercase it depresses the humerus in the last-named-bird byacting directly upon the bone, while in the Raven it isan auxiliary to the great pectoral muscle. 13. The der mo-pectoralis is a muscle that corre-sponds to the dermo-dorsalis of the back, and is simplythe evident muscular stratum underlying the feather-quills of the tracts of these appendag
. The myology of the raven (Corvus corax sinuatus.) A guide to the study of the muscular system in birds . oralis major just below its insertion. In theApteryx the dermo-humeralis is inserted fleshy intothe proximal part of the humerus (Owen). In eithercase it depresses the humerus in the last-named-bird byacting directly upon the bone, while in the Raven it isan auxiliary to the great pectoral muscle. 13. The der mo-pectoralis is a muscle that corre-sponds to the dermo-dorsalis of the back, and is simplythe evident muscular stratum underlying the feather-quills of the tracts of these appendages, that are foundon either side of the robust chest of this bird, runningin the longitudinal direction. Either of these muscles disappears anteriorly over theorio-in of the cleido-trachealis, while behind their ter- o minal fibres merge imperceptibly into the integumentafter passing the hinder tips of the postpubic elementsof the pelvis. Acting from the anterior skin insertion,these muscles raise the feathers of the chest, the actionbeing reversed by the muscle contracting from theopposite II. THE MUSCLES OF THE HEAD. INCLUDING THE MUSCLES OF THE LINGUAL APPARATUS,TRACHEA, AND THOSE OF THE EYE AND EAR. DIVIDE the skin completely around the entire beak, atits base ; divide the platysma myoides close to its origin,on either side, and allow its gular portion to come awaywith the integument as it is removed; in like manner,divide, on either side, close to their origins, the circum-conchae and dermo-temporalis. Carefully reflect back-wards the entire skin, so as to expose the neck for atleast its upper third. Open the birds mouth to its fullextent, and pack sufficiently with soft tow, so as torender the muscles of the tongue and trachea moreprominent. The muscles here to be examined are the intrinsicmuscles of the head, and are in no way attached to thevertebral column. They are the following :— 14. The temporal. IS. The pterygoideus interims. 15. The masseter. 19. Th
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Keywords: ., bookcentury1800, bookcollection, bookdecade1890, booksubjectmuscl
