Hey there!
Bronchitis is a disease that caused the bronchioles to inflammate which makes breathing difficult.
Bronchitis is often started by a virus, and usually occurs after you've had a cold or flu. It can cause breathing and coughing problems but improves and heals itself.
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Marijuana is the the drug derived from the hemp plant.
During contraction, the filaments slide past he thick filaments, shortening the sarcomere. The thick and thin filaments do the actual work of a muscle, and the way they do this is pretty cool. Thick filaments are made of a protein called myosin. At the molecular level, a thick filament is a shaft of myosin molecules arranged in a cylinder. Thin filaments are made of another protein called actin. The thin filaments look like two strands of pearls twisted around each other.
An exam that gives your doctor a close-up view of your larynx and throat.