First Book in Physiology: For the Use of Schools |
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Page 27
... sometimes shut , so as to prevent anything from pass- By what is the saliva made ? Where is the largest of these glands situated ? How many of these glands are there ? Are they equally at work all the time ? Do they all secrete the same ...
... sometimes shut , so as to prevent anything from pass- By what is the saliva made ? Where is the largest of these glands situated ? How many of these glands are there ? Are they equally at work all the time ? Do they all secrete the same ...
Page 28
... sometimes of so many different kinds , is all 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 ...
... sometimes of so many different kinds , is all 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 ...
Page 29
For the Use of Schools Worthington Hooker. is not digested , as sometimes happens , then commonly this sentinel after awhile gives up its resistance , and lets the undigested food pass on . Or , if it holds out in its resistance , the ...
For the Use of Schools Worthington Hooker. is not digested , as sometimes happens , then commonly this sentinel after awhile gives up its resistance , and lets the undigested food pass on . Or , if it holds out in its resistance , the ...
Page 61
... sometimes assist very much . They are muscles that move the whole frame- work of the ribs and the breast - bone forward and upward . By doing this they enlarge the room in the chest in front and at the sides at the same time that the ...
... sometimes assist very much . They are muscles that move the whole frame- work of the ribs and the breast - bone forward and upward . By doing this they enlarge the room in the chest in front and at the sides at the same time that the ...
Page 62
... sometimes so blocks up the windpipe that Why is it so important that the dark blood should be changed to red in the lungs ? How is life destroyed in drowning ? How does disease often produce death ? very little air can get through it ...
... sometimes so blocks up the windpipe that Why is it so important that the dark blood should be changed to red in the lungs ? How is life destroyed in drowning ? How does disease often produce death ? very little air can get through it ...
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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 vertebrę 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...