First Book in Physiology: For the Use of Schools |
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Page 10
... changed . There is , there- fore , a set of machinery in the chest for the purpose of changing the blood . The blood is carried to the lungs , and there it is exposed to the air that we breathe into the lungs every time that we draw a ...
... changed . There is , there- fore , a set of machinery in the chest for the purpose of changing the blood . The blood is carried to the lungs , and there it is exposed to the air that we breathe into the lungs every time that we draw a ...
Page 28
... changed into a greyish cream - like substance , called chyme . 14. None of the food can pass by the valve into the intestines till the gastric juice has acted upon it enough and changed it into chyme . As the stomach churns the food ...
... changed into a greyish cream - like substance , called chyme . 14. None of the food can pass by the valve into the intestines till the gastric juice has acted upon it enough and changed it into chyme . As the stomach churns the food ...
Page 33
... changed much to make his blood . But if the food which an animal lives on is very much unlike his flesh , the apparatus of digestion is very complicated , because the food must be much changed before blood can be made out of it . 24 ...
... changed much to make his blood . But if the food which an animal lives on is very much unlike his flesh , the apparatus of digestion is very complicated , because the food must be much changed before blood can be made out of it . 24 ...
Page 44
... changed from good blood to bad blood . 20. This dark blood , then , that goes back by the veins to the heart is not fit to be used so long as it remains dark . When it gets back to the heart it will not do to have it sent all over the ...
... changed from good blood to bad blood . 20. This dark blood , then , that goes back by the veins to the heart is not fit to be used so long as it remains dark . When it gets back to the heart it will not do to have it sent all over the ...
Page 45
... changed to red blood before the heart sends it again all over the system . For this purpose the heart sends it to the lungs , where , by exposure to the air that we breathe into those organs , it is changed to red blood . After it is ...
... changed to red blood before the heart sends it again all over the system . For this purpose the heart sends it to the lungs , where , by exposure to the air that we breathe into those organs , it is changed to red blood . After it is ...
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Common terms and phrases
acid gas air-cells animals apparatus arteries auricle bellows body brain breast-bone breathing building called capillaries carbonic acid carbonic acid gas cavity chain of bones changed chapter chest chinery chyle chyme circulation cles comes concert of action contracts cords daguerreotyping dark blood drum duct elbow-joint fastened feel fibres fingers fluid foot formative vessels front gall-bladder glands goes grinding hand head hearing heart hinge-joint images instrument intestines joint kinds larynx ligaments liver look lower jaw lungs membrane messages mind motion mouth muscles act muscles that move nerves nervous oesophagus organs oxygen parietal bones particles pass pull red blood repairing represented in Fig respiration retina right auricle sent serous membrane shape shoulder-joint side skin socket sound spinal column stomach structures substance tear-gland tears teeth tendons thing tion tube ulna valves variety veins ventricle vertebræ vibration winding passages windpipe
Popular passages
Page 112 - This is one reason also why it is made up of so many different bones, instead of being one solid, tight box. If a blow be received on the head, these bones give a little upon each other, as it is expressed, and so they are not often broken. They give more in the child than in the adult, because, besides being less brittle, they are less tightly put together. It is well that it is so ; for if it were not, the skull would often be fractured, in the frequent falls which the child has. 9. The bones on...
Page 169 - It is often produced by the vibration of the air. This is the case in whistling. In the flute it is the vibration of the air in the instrument that produces the sound. And so of other similar instruments. 3. When the vibrations are equal, the sound is a musical one. But when they are irregular, the sound is a noise, that is, a confused sound. 4. Sound passes through the air by vibrations. It may be said to pass by waves in all directions, just as waves go in all directions on the surface of water...
Page 54 - ... supply of impure air afforded by the Yoga exercises, we should aim at a large supply of pure air. How is this to be secured ? The air we breathe goes down into the lungs, which are full of small air cells, somewhat like a sponge. As a sponge is much larger when its cells are filled with water than when dry, so the lungs swell out when their cells are filled with air. How many little air cells are there in the lungs ? About sixty lakhs ! The air after staying a little time in the air cells, goes...