Diaphragm
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British pronunciation/dˈa‍ɪəfɹˌæm/
American pronunciation/ˈdaɪəˌfɹæm/
01

(anatomy) the muscular body partition that separates the chest and abdomen

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diaphragm definition and meaning

What is "diaphragm"?

The diaphragm is a dome-shaped muscle located beneath the lungs and separates the chest cavity from the abdominal cavity in the human body. It plays a vital role in respiration by contracting and relaxing to facilitate breathing. When the diaphragm contracts, it flattens and moves downward, creating more space in the chest cavity and allowing the lungs to expand, filling with air. This is known as inhalation. When the diaphragm relaxes, it returns to its dome shape, causing the chest cavity to decrease in volume and air to be expelled from the lungs, which is known as exhalation. In addition to its role in respiration, the diaphragm also assists in other bodily functions such as coughing, sneezing, and maintaining proper posture.

02

a dome-shaped contraceptive device that blocks sperm from reaching the uterus

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03

a mechanical device in a camera that controls size of aperture of the lens

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04

electro-acoustic transducer that vibrates to receive or produce sound waves

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example
Example
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Women insert the diaphragm before intercourse to block sperm.
The diaphragm covers the cervix, preventing sperm from entering the uterus.
Correct sizing is crucial for the effectiveness of a diaphragm.
The hiatus in the diaphragm allows the esophagus to pass through into the abdominal cavity.
The diaphragm is a barrier method of contraception used to prevent pregnancy.
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Meaning of "Diaphragm"
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