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These are examples of commonly used thermometers. Ear thermometers use infrared energy to measure body temperature. The small cone

High blood pressure means that blood is pushing too hard against artery walls. The force of this blood can damage the heart and

A urinary catheter is a small, flexible tube that can be inserted through the urethra and into the bladder, allowing urine to

Esophagitis is irritation or inflammation of the esophagus. The esophagus is the tube that carries food from the throat to the

A SLAP tear is an injury to a piece of shoulder cartilage called the labrum. This cartilage surrounds the shoulder socket, helping

When you yawn or swallow, the eustachian tubes open briefly and make the air pressure equal inside and outside the ears. The

A Baker's cyst is a pocket of joint fluid that forms a lump behind the knee. It is also called a popliteal cyst.

Mitral valve regurgitation happens when the mitral valve does not close tightly enough after blood flows through the valve into

Bedbugs are flat, wingless insects that feed on blood from animals or people. The bugs are about 0.25 in. (0.6 cm) long and range

The lingual frenulum is a band of tissue under the tongue that connects the tongue to the bottom of the mouth.