. Atlas and text-book of human anatomy. Anatomy -- Atlases. THK MUSCLKS OF THK HACK. 153 region it is partly concealed Ijy the semispinalis cervicis, to the outer side of which it is covered by the semispinaUs capitis. In the lumbar region the greater portion of its fibers arise from the acces- sory and mammillary processes, in the thoracic region from the transverse processes, and in the cervical region from the articular processes of the four lower cervical vertebras The fasciculi are intermixed with tendinous ilberb and generally over two or three , combining Occipital bon
. Atlas and text-book of human anatomy. Anatomy -- Atlases. THK MUSCLKS OF THK HACK. 153 region it is partly concealed Ijy the semispinalis cervicis, to the outer side of which it is covered by the semispinaUs capitis. In the lumbar region the greater portion of its fibers arise from the acces- sory and mammillary processes, in the thoracic region from the transverse processes, and in the cervical region from the articular processes of the four lower cervical vertebras The fasciculi are intermixed with tendinous ilberb and generally over two or three , combining Occipital bone {basihsr portion) Alias Epiitropluus antcrivres '- posleriores*^. occipital pralubcrance Nuchal liQjmcnt Jtiterspinales .V tu h.:.' .';^'.; n:fnt -Spinous process oj cm-icaJ vertebra VII Ftc. 243.—Diagram of the corneal intcrspinalcs and intcrtransvcrsarii and of ihc nuchal ligament. to form a single uninterniptcd muscular layer, the deeper ])ortion of which is distinguishable only with dilTuulty from the rotatores, ])art of whose fibers pass in the same direction (Fig. 240). The rotatores are composcxl of the rolalorcs loiioi and brrcis. They arc small, flat, and ]Kirlly tendinous muscles which lie immediately upon the vertebral arches throughout the entire spinal column, but are chiefly develojied in the thoracic region. The rotatores hrrjcs (Tig. 240) are almost horizontal and ]xiss from the transverse process of one vertebra to the root of the spinous process of the vertebra next above; the rotatores lou^i {Fig. 240) extend over one or sometimes. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sobotta, Johannes, 1869-1945; McMurrich, J. Playfair (James Playfair), 1859-1939. Philadelphia, Saunders
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