G Glossary of Terms for
Physical Therapy & Sports Medicine
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G
Gadolinium MRI:
The chemical gadolinium is injected into the joint being studied so as to enhance the diagnosis image of the structure under investigation.
Gamekeeper's Thumb:
Tear of the ulnar collateral ligament of the metacarpophalangeal joint of the thumb.
Glenohumeral:
The shoulder girdle; consists of the glenoid capsule, head of the humerus and labrum. The type of joint that allows 360-degree motion, a "ball and socket" joint.
Glenoid:
Cavity of the scapula into which the head of the humerus fits to the form the shoulder girdle.
Glucose:
A simple sugar found in the blood, all of carbohydrate and part of fat can be changed by the body into glucose. It is the body's main source of energy; also known as dextrose.
Glycogen:
Stored form of carbohydrate in the liver and muscles. Glycogen is the chief source of stored fuel in the body.
Grade One Injury:
A mild injury in which ligament, tendon, or other musculoskeletal tissue may have been stretched or contused, but not torn or otherwise disrupted.
Grade Two Injury:
A moderate injury when musculoskeletal tissue had been partially, but not totally torn which causes appreciable limitation in function of the injured tissue.
Grade Three Injury:
A severe injury in which tissue has been significantly, and in some cases totally, torn or otherwise disrupted causing a virtual total loss of function.
Groin:
Junction of the thigh and abdomen; location of muscles that rotate, flex and adduct the hip.
Guarding:
Involuntary local reflex ("protective") abdominal muscle contraction in the region of an area of peritonitis (inflamed lining membrane of the potential cavity in the abdomen).
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