A Practical Physiology a Text book for Higher Schools
The book A Practical Physiology a Text book for Higher Schools was written by author Albert F Albert Franklin Blaisdell Here you can read free online of A Practical Physiology a Text book for Higher Schools book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Practical Physiology a Text book for Higher Schools a good or bad book?
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84. of the arrangement and working of the res- ^ p^g o ^ • piratory apparatus. With its consideration, we complete our view of the sources of supply to the blood, and begin our study of its purification. 203. The Trachea, or Windpipe. If we look into the mouth of a friend, or into our own with a mirror, we see at the back part an arch which is the boundary line of the mouth proper. There is just behind this a similar limit for the back part of the nostrils. The funnel-shaped cavity beyond, into... which Digitized by Google 204 PRACTICAL PHYSIOLOGY. both the mouth and the posterior nasal passages open, is called the pharynx. In its lower part are two openings. ; the trachea, or windpipe, in front, and the oesophagus behind. The trachea is surmounted by a box-like structure of carti- lage, about four and one- half inches long, called the larynx. The upper end of the larynx opens into the pharynx or throat, and is provided with a lid, — the epiglottis, — which closes under certain cir- cumstances (sees.
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