after it leaves the base of the brain, sends branches to the ears, the throat, the heart, the lungs, and the digestive tract, with stops along the way at the vocal cords and the diaphragm ...
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Why can't you suffocate by holding your breath?"So that sends signals down to your breathing center, which is the base of the brain, the medulla." That controls the muscles that help you breathe, like the diaphragm, the main muscle responsible ...
A diaphragm is a silicone, cup-like object that you insert into your vagina to cover your cervix. Diaphragms must be used in conjunction with spermicide, which is a sperm-killing gel. A diaphragm ...
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