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The central nervous system is made up of the brain and spinal cord. The central nervous system controls thought processes, guides

The lungs are the organs in the chest involved in breathing. The lungs are surrounded and protected by the rib cage. The lung on

A functional ovarian cyst is a fluid-filled sac that forms on the ovary. A sac normally forms during ovulation to hold a maturing

The voice box (larynx) is located in the neck, just above the windpipe (trachea). The two vocal cords in the larynx are covered

Eczema, also called atopic dermatitis, is a skin condition that causes intense itching. It causes dry skin and a raised rash

Gout is caused by too much uric acid in the blood (hyperuricemia). Hyperuricemia usually does no harm. But sometimes when uric

Blisters are fluid-filled bumps that look like bubbles on the skin. You may develop a blister on your foot when you wear shoes

The menstrual cycle is the series of changes the body goes through to prepare for a pregnancy. About once a month, the lining of

In some types of inflammatory arthritis, such as rheumatoid arthritis, the body's immune system attacks the joint lining (synovium

During ovulation, an egg is released from the ovary and travels down the fallopian tube.