. A text-book in general physiology and anatomy. Physiology, Comparative; Anatomy. STETTCTUKE OF TRACHEA 317 one on each side of the heart, and are held together at the top by the two bronchi or main branches of the trachea. If we inflate these two bags with the aid of the glass tube and then tie the trachea tightly, the lungs may be separated from the cavity and floated upon water. This. Fig. 147 Bibs and muacles ; a, ribs ; 6, cartilages ; c, junction of bone and carti- lage ; (Z, bony portions, and e, cartilaginous portions of breastbone ; A^ external intercostal muscle; B, internal interco
. A text-book in general physiology and anatomy. Physiology, Comparative; Anatomy. STETTCTUKE OF TRACHEA 317 one on each side of the heart, and are held together at the top by the two bronchi or main branches of the trachea. If we inflate these two bags with the aid of the glass tube and then tie the trachea tightly, the lungs may be separated from the cavity and floated upon water. This. Fig. 147 Bibs and muacles ; a, ribs ; 6, cartilages ; c, junction of bone and carti- lage ; (Z, bony portions, and e, cartilaginous portions of breastbone ; A^ external intercostal muscle; B, internal intercostal muscle. In tbe middle the external muscle has been removed. power to float has earned them the name of " lights " from the butcher. The dissection of these separated lungs shows the following structural features. Structure of the trachea.— The trachea is a stiff, cylin- drical tube covered on the outside with a layer of fibrous, connective tissue in . which are embedded the stiffening rings of cartilage. The interior of the tube is lined with a single layer of mucous membrane, the innermost cells of. 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 Eddy, Walter Hollis, b. 1877. New York, Cincinnati [etc. ] American book Co
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