Health, diseases terms glossary - Starting with B

Breech birth: Breech birth- childbirth in which the baby is turned around in the uterus and emerges head-last instead of head-first.
Bronchitis: Bronchitis- inflammation of the bronchial tubes, which connect the trachea to the lungs.
Bronchoconstrictor: Bronchoconstrictor- a substance that causes the lung airways to tighten up and become more narrow.
Bronchodilator: Bronchodilator- a drug that widens the airways in the lungs to improve breathing; works by relieving muscle contraction or buildup of mucus.
Bronchospasm: Bronchospasm- the temporary narrowing of the airways in the lungs, either as a result of muscle contraction or inflammation; may be caused by asthma, infection, lung disease, or an allergic reaction.
Bruxism: Bruxism- an unaware clenching or grinding of the teeth, usually during sleep.
Bulimia: Bulimia- a disorder in which a person eats large amounts of food then forces vomiting or uses laxatives to prevent weight gain (called binging and purging).
Bunion: Bunion- a hard, fluid-filled pad along the inside joint of the big toe; may be caused by wearing high-heeled shoes or a genetically weak joint.
Bursa: Bursa- a fluid-filled sac that cushions and reduces friction in certain parts of the body.

Glossary