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E
electromyograph (EMG) - an examination of the nervous system which determines
to what extent nerves and muscles have been irritated or damaged
epidural block - an injection which can be used as a treatment as well as a
diagnostic tool to help locate the source of pain
epidural hematoma - bleeding in the epidural space in the spine
F
facet joints - the overlapping of bony projections occurring when two vertebrae
are placed on top of one another, guiding and restrict movement of the spine
H
herniated disc - a condition in which the nucleus pulposus escapes from the
annular tears and enters the intervertebral foramina
hip - the region on each side of the pelvis; made up of three sections: ilium,
ischium, and pubis; the upper part of the femur (upper leg bone) fits into the hip via a
ball-and-socket joint; the socket is a cup-shaped bone of the pelvis called the acetabulum and
the ball is the head of the femur
I
ileus - obstruction of the bowel; specifically : a condition that is commonly marked
by a painful distended abdomen, vomiting of dark or fecal matter, toxemia, and dehydration
immune system - complex network of specialized cells and organs that work together to
defend the body against attacks by foreign invaders such as bacteria and viruses; in some
rheumatic conditions, it appears that the immune system does not function properly and may even work
against the body
inflammation - characteristic reaction of tissues to injury or disease; marked by four
signs: swelling, redness, heat, and pain
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