First Book in Physiology: For the Use of Schools and Families |
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Page 27
... valve which is 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 ...
... valve which is 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 ...
Page 28
... valve into the intestines till the gastric juice has acted upon it enough and changed it into chyme . As the stomach churns the food , some of it continually comes in con- tact with the valve . But the valve will not open till some of ...
... valve into the intestines till the gastric juice has acted upon it enough and changed it into chyme . As the stomach churns the food , some of it continually comes in con- tact with the valve . But the valve will not open till some of ...
Page 29
... valve of the stomach it goes into the intestine , the beginning of which you see in Fig . 13. There two other juices FIG . 14 . Liver . Pylorus . Esophagus . Pancreas . Stomach . Gall Bladder . -Spleen . Large Intestines .-- Large ...
... valve of the stomach it goes into the intestine , the beginning of which you see in Fig . 13. There two other juices FIG . 14 . Liver . Pylorus . Esophagus . Pancreas . Stomach . Gall Bladder . -Spleen . Large Intestines .-- Large ...
Page 48
... valves . When the ventricle contracts these valves shut , and so none of the blood can go in that direc- tion , but all of it goes towards the lungs . 28. These valves operate just as the valve of the bel- lows does , as seen in Figures ...
... valves . When the ventricle contracts these valves shut , and so none of the blood can go in that direc- tion , but all of it goes towards the lungs . 28. These valves operate just as the valve of the bel- lows does , as seen in Figures ...
Page 49
... valve is shut , and the air is forced out through the nose ; just as , when the ventricle contracts , the valves close , and the blood is forced out through the artery that goes from the ventricle . Observe now , in what way the valves ...
... valve is shut , and the air is forced out through the nose ; just as , when the ventricle contracts , the valves close , and the blood is forced out through the artery that goes from the ventricle . Observe now , in what way the valves ...
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acid gas air-cells animals aorta 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 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 - BO 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 the top of the head are fastened together by...
Page 2 - Also several other Text Books by good Authors, for which, see our Catalogue, which is furnished gratis. We furnish to Teachers for Examination, postpaid by mail, a copy of any of the above books not having a * annexed, at half price. Those marked with a * we send on receipt of the prices annexed.
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 2 - BULLIONS' SERIES OF GRAMMARS, ETC. INTRODUCTION TO ANALTT. AND PEAC. GRAMMAR. 40cts. ANALYTICAL AND PRACTICAL ENGLISH GRAMMAR. 75 cents. EXERCISES IN ANALYSIS AND PARSING. 1R cents. LATIN LESSONS, by Spencer, 75 cents, introductory to Bullions
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...