Quotation from: General ScienceWritten by: Bertha M. Clark |
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40. How to Breathe. Air, which is essential to life and health, should enter the body through the nose and _not through the mouth_. The peculiar nature and arrangement of the membranes of the nose enable the nostrils to clean, and warm, and moisten the air which passes through them to the lungs. Floating around in the atmosphere are dust particles which ought not to get into the lungs. The nose is provided with small hairs and a moist inner membrane which serve as filters in removing solid particles from the air, and in thus purifying it before its entrance into the lungs.
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