. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. e opening for the oesophagus. 13, The opening for the aocending vena cava,or vein. Observation. The diaphragm may be compared to an in-verted basin, its bottom being turned upward into the thorax,while its edge corresponds with the outline of the edges of thelower ribs and sternum. Its concavity is directed toward theabdomen, and thus, this cavity is very much enh\rged at theexpense of tliat of the chest, which is diminislied to an 159 Describe the diaphragm, ^yhat vessels penetrate th
. A treatise on anatomy, physiology and hygiene : designed for colleges, academies and families. e opening for the oesophagus. 13, The opening for the aocending vena cava,or vein. Observation. The diaphragm may be compared to an in-verted basin, its bottom being turned upward into the thorax,while its edge corresponds with the outline of the edges of thelower ribs and sternum. Its concavity is directed toward theabdomen, and thus, this cavity is very much enh\rged at theexpense of tliat of the chest, which is diminislied to an 159 Describe the diaphragm, ^yhat vessels penetrate this muscularseptum ? 7 74 ANATOMY, PHYSIOLOGY, AND HYGIENE. 160. The motions of the fingers do not merely result fromthe action of th*e large muscles which lie on the fore-arm,these being concerned more especially in the stronger actionsof the hands. The finer and more delicate movements ofthe fingers are performed by small muscles situated in thepalm and between the bones of the hand, and by which thefingers are expanded and moved in all directions with wonder-ful rapidity. Fig. 43. Fig.
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