The hydropathic encyclopedia: a system of hydropathy and hygiene .. . cl)the iron is removed. Respiration occurs in aquatic animals which do not breathe air. lathem the respiratory organs are membranes prolonged ex:ern87ly intotafts or fringes, called gills, each one of which is supplied with arteriesand veins, during the circulation of blood through which aeration In air-breathing animals the mombranv is or aeratiig surface iB re-flected internally, forming passages or chambers in which the air is re-ceived, and on which the capillary vessels are distributed. Insects havea series o
The hydropathic encyclopedia: a system of hydropathy and hygiene .. . cl)the iron is removed. Respiration occurs in aquatic animals which do not breathe air. lathem the respiratory organs are membranes prolonged ex:ern87ly intotafts or fringes, called gills, each one of which is supplied with arteriesand veins, during the circulation of blood through which aeration In air-breathing animals the mombranv is or aeratiig surface iB re-flected internally, forming passages or chambers in which the air is re-ceived, and on which the capillary vessels are distributed. Insects havea series of tubes ramifying through the whole body, and carrying air toevery part. in the human lungs the sides or walls of the air cells are formed ofa thin transparent membrane, and the capillary vessels are placed be-tween the walls of two adjacent cells, so as to be exposed to the actionof the air on both The number of the air cells of the is ;mirv>nse. M. Rochoux has them at six huudreiimillions THE INTIVIDUAL FUNCTIONS. 2H» Fig. BRONCHIAL TUBE AND AIR-VESICLES. Pig. 113 represents theDronubiul tube, and its di*vision into air cells, asmuch magnified. 1. 4bronchial tube. 3, S, -Air cells, or vesicles. 3,\ bronchial tuoe and vestcles laid open. The capacity of thelungs varies greatlyin different individ-uals. M. Bourgeryconcludes from hisinquiries that the development of the air cells continues up to the ageof thirty, at which timo the respiratory capacity is greatest. Accord-ing to the experiments of Mr. Coathupe, about 2G6J cubic feet of autpass through the lungs of a middle-sized man in twenty-four the average number of sixteen inspirations per minute, Che amountof air received at. each inspiration would be twenty cubic inches. MrHutchinson judges the capacity of the lungs by the quantity of airwinch an individual can force out of the cherit by the gr ;iltest voluntaryexpiration after the greatest voluntary inspiration. Dr. Southwo
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Keywords: ., bookcentury1800, bookdecade1870, bookpub, booksubjecthydrotherapy
