. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. ercostals. 6, The transversalis muscle. 7, Its posterior aponeurosis. 8, Its anterior aponeurosis. I J, The right rectus muscle. 13, Ihe crest of the ilium, or baunch-bone.»Practical Eocpianation. The rectus muscle, 11, bends the thorax upon the abdouien when the lower extremity of the muscle is Xhe fixed point; hut wheJi the u|)per ex-tremity is the fixeu poir,:., the effect is to brin^ forward and raise the pelvis and !r>werextremities. They likewise depress the ribs in respiration. The transv


. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. ercostals. 6, The transversalis muscle. 7, Its posterior aponeurosis. 8, Its anterior aponeurosis. I J, The right rectus muscle. 13, Ihe crest of the ilium, or baunch-bone.»Practical Eocpianation. The rectus muscle, 11, bends the thorax upon the abdouien when the lower extremity of the muscle is Xhe fixed point; hut wheJi the u|)per ex-tremity is the fixeu poir,:., the effect is to brin^ forward and raise the pelvis and !r>werextremities. They likewise depress the ribs in respiration. The transverse muscle.|r,7, 8, lessens the cavity of the abdomen, and [)resses the intestines, stomach, andJiver upward, against the diaphragm, in expiration.• 3d. The region of the back, in consequence of its extert, iscommon to the neck, the upper extremities, and the abdomenThe muscles of which it is composed are numerous, and arearranged in six layers. What is represented by fig. 40?muscles represented by this figtire. Give the function of some of the ANATOMY. PIIYSIOIOGV, Ax\D HYGIENE,Fig.


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