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Stethoscope |
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| Used to listen to sounds arising especially from the heart and lungs, a stethoscope has a two-part sound-detecting device at one end. The bell, bowl-shaped with a hole in the center, detects low-pitched sounds when the rim is pressed against the skin. The other side, called the diaphragm, has a thin, flat plastic cover. The diaphragm detects high-pitched sounds. A doctor hears these sounds through the earpieces of the stethoscope as they pass up the Y-shaped rubber tubing. | ||||||
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| Herbert Wagner/Phototake NYC | ||||||
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| Appears in these articles: | ||||||
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| Medicine; Heart; Stethoscope | ||||||
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