Medical

The bones, the joints, and the muscles that contract and relax to move the joints and bones.

Malignant diseases of the lymphoid cells and cells from the reticuloendothelial system (which take up and sequester inert particles).

The father of anatomic art, as well as an accomplished architect, scientist, engineer, inventor, poet, sculptor, and painter.

A clear, volatile liquid with a strong smell similar to that of ether. Chloroform was once administered by inhalation to produce anesthesia, given to relieve pain, and used as a remedy for cough.

Nitrous oxide, a gas capable of causing general anesthesia.

Nitrous oxide, a gas that can cause general anesthesia.

A gas that can cause general anesthesia.

The sensation that a pregnant woman feels when the lowermost part of the fetus descends and is engaged in the mother's pelvis, an event that typically occurs 2 to 3 weeks before labor begins.

Care of the fingernails and toenails. Many nail problems are due to poor nail care.

Care of the fingernails and toenails. Many nail problems are due to poor nail care.