. A system of anatomy for the use of students of medicine (Volume 1). le-ton as the fourth rib : it iscommonly divided into twoportions. 1. The superior or, Greater Muscle of the Dia-phragm, .Irises, by distinct fleshyfibres, from the cartilago-ensiformis, from the cartilages of theseventh, and of all the inferior ribs on both sides. The fibresfrom the cartilago-ensiformis, and from the seventh and eighth * Thorax of a male.—On the left side the muscles are removed; on the rightthey are left in situ, a, a, Cervical and lumbar parts of the spinal column, thedorsal portion is concealed by the st
. A system of anatomy for the use of students of medicine (Volume 1). le-ton as the fourth rib : it iscommonly divided into twoportions. 1. The superior or, Greater Muscle of the Dia-phragm, .Irises, by distinct fleshyfibres, from the cartilago-ensiformis, from the cartilages of theseventh, and of all the inferior ribs on both sides. The fibresfrom the cartilago-ensiformis, and from the seventh and eighth * Thorax of a male.—On the left side the muscles are removed; on the rightthey are left in situ, a, a, Cervical and lumbar parts of the spinal column, thedorsal portion is concealed by the sternum, b. c, c, The true ribs. c\ The falseribs, d, The clavicle, e, Intercostal muscles. /, Last false rib, concealed bythe origin of a part of the greater muscle of the diaphragm, g, The arch formedin the interior of the thorax by the diaphragm: the position of this arch on theright side, is indicated by a dotted line, h, Columns, or crura of the lesser mus-cles of the diaphragm, arising from the lumbar vertebrae, i, Levatores costarum,longiores, and MUSCLES OF THE ABDOMINAL CAVITY. 3J3 ribs, run obliquely upwards and backwards; from the ninth andtenth, transversely inwards and upwards, and from the eleventhand twelfth, obliquely upwards. From these different originsthe fibres run, like radii from the circumference to the centre ofa circle; and are Inserted into a cordiform tendon, of a considerable breadth,which is situated in the middle of the diaphragm, and in which,therefore, the fibres from opposite sides are interlaced. To-wards the right side the tendon is perforated, by a triangularhole, for the passage of the vena cava inferior; and to the upperconvex part of it the pericardium and mediastinum are con-nected. The inferior, lesser muscle, or Appendix of the Diaphragm, Arises from the second, third and fourth lumbar vertebrae,by eight heads, of which, two in the middle, commonly calledits crura, are the longest, and begin tendinous. Between thecrura, the
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Keywords: ., bookcentury1800, bookid101532043x1nlmnihgov, booksubjectanatomy
