First Book in Physiology: For the Use of Schools |
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Page 67
... foot is considered very desirable in a female . The foot is , therefore , put under pressure while it is growing , just as the chest often is among us . And it is astonishing how small and into what a shape it can be made to grow . In ...
... foot is considered very desirable in a female . The foot is , therefore , put under pressure while it is growing , just as the chest often is among us . And it is astonishing how small and into what a shape it can be made to grow . In ...
Page 126
... foot repre- sented at f , in Fig . 51. It is a hinge - joint . It is made quite loose , however , so that the foot can be turned inward and outward . And yet it is a very firm joint , for the bones of the leg jut over strongly on each ...
... foot repre- sented at f , in Fig . 51. It is a hinge - joint . It is made quite loose , however , so that the foot can be turned inward and outward . And yet it is a very firm joint , for the bones of the leg jut over strongly on each ...
Page 127
... foot is the same as that stated in regard to the hand in § 31 . The springiness thus given to the foot is quite im- portant in guarding against shocks . You can realize this if in jumping you come down on your heels , in- stead of ...
... foot is the same as that stated in regard to the hand in § 31 . The springiness thus given to the foot is quite im- portant in guarding against shocks . You can realize this if in jumping you come down on your heels , in- stead of ...
Page 128
... foot at b presses firmly on the ground as the heel rises . Now , as the change of pressure is made from the heel to the ball of the foot , there is a little giving between all the bones of the tarsus a and the meta- tarsus b , and this ...
... foot at b presses firmly on the ground as the heel rises . Now , as the change of pressure is made from the heel to the ball of the foot , there is a little giving between all the bones of the tarsus a and the meta- tarsus b , and this ...
Page 132
... foot are repre- sented . P , the muscle , makes up most of the bulk of What is said of the size of the tendons ? What of their strength ? Why is it difficult to heal a broken tendon ? the calf of the leg . FIG . 54 . 132 FIRST BOOK IN ...
... foot are repre- sented . P , the muscle , makes up most of the bulk of What is said of the size of the tendons ? What of their strength ? Why is it difficult to heal a broken tendon ? the calf of the leg . FIG . 54 . 132 FIRST BOOK IN ...
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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...