Frontal Lobes

The region of the brain in the front of the head which lies above and in front of the pituitary gland. The part of each hemisphere of the brain located behind the forehead that serves to regulate and mediate the higher intellectual functions. The frontal lobes are...

FSH

Follicle Stimulating Hormone A gonadotrophin secreted by the pituitary gland, the hormone promotes fertility in men and helps to regulate the menstrual cycle in women.

Gadolinium

An element used in contrast media for magnetic resonance imaging. A metal element that is used in magnetic resonance imaging (MRI) and other imaging methods. It is a contrast agent, which helps show abnormal tissue in the body during imaging with a special machine....

Gantry

A frame housing the x-ray tube, collimators, and detectors in a CT machine, with a large opening into which the patient is inserted. Part of a CT scanning machine – During a CT scan, the patient will be asked to lie on a narrow table (gantry) that slides into the...

Gastrointestinal (GI)

Relating to the stomach and intestines. The gastrointestinal system consists of the gastrointestinal tract, a tube extending from the mouth to the anus; its purpose is to break down food, prepare it for absorption and eliminate waste.