General Medical Terms

The last part of a long, twisting tube that collects urine from the nephrons (cellular structures in the kidney that filter blood and form urine) and moves it into the renal pelvis and ureters.

A fibrous envelope of tissue that surrounds the kidney.

A tiny, round cluster of blood vessels within the kidneys.

The area at the center of the kidney.

In biology, refers to the reproduction cycle of viruses.

An egg or sperm cell.

A scientific study of nature that sometimes includes processes involved in health and disease.

A resectable tumor or structure can be surgically removed based on its size, location, and relationship to nearby vital structures.

Resected describes tissue, an organ, or a growth that a surgeon has cut away and removed from the body during an operation.

Resin is a viscous substance, either plant derived or synthetic, applied in dentistry, pharmaceuticals, and manufacturing for its adhesive and binding properties.

A process in which a substance, such as tissue, is lost by being destroyed and then absorbed by the body.

A respirator most often refers to a mechanical ventilator that supports breathing, though the same word also names a protective mask that filters inhaled air.

A word doing two jobs: the body reacting to something, and the disease measurably changing after treatment.

The percentage of patients whose cancer shrinks or disappears after treatment.

Resting describes a cell that is temporarily inactive with respect to division, distinguishing it from one actively multiplying.

The action of the stomach and esophagus to try to vomit (eject some or all of the contents of the stomach).

The thick bottom layer of the dermis (the inner layer of the skin).

Retin-A is a brand name for topical tretinoin, a vitamin A derivative applied to skin to treat acne and reduce signs of photoaging.

A topical preparation of tretinoin that is used to treat acne.

The light-sensitive layers of nerve tissue at the back of the eye that receive images and sends them as electric signals through the optic nerve to the brain.