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Chapter 4
Musculoskeletal System
124
Medical
Not Applicable
06/20/2005

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Term
Sagittal Plane
Definition
Vertical division of the body into right and left portions
Term
Coronal of frontal plane
Definition
Vertical division of the body into front (anterior) and back (posterior) portions
Term
Transverse Plane
Definition
horixontal division of the boy inot upper and lower portions
Term
Anterior
Definition
front of the body
Term
Posterior
Definition
Back of the body
Term
Anterior-Posterior
Definition
From front to back; such as in the direction of an x-ray beam
Term
posterior-anterior
Definition
from back to front; such as in the direction of an x-ray beam
Term
superior (cephalic)
Definition
situated above another structure, toward the head
Term
inferior
Definition
situated below another structure, away from the head
Term
proximal
Definition
toward the beginning or orgin of a structure; e.g. the proxmial aspect of the femur (thigh bone) is the area closest to where it attaches to the hip
Term
distal
Definition
away from the beginning of the structure; e.g. the distal aspect of the femur is the area at the end of the bone near the knee
Term
medial
Definition
toward the middle (midline)
Term
lateral
Definition
toward the side
Term
axis
Definition
line that runs through the center of the body or body part
Term
erect
Definition
normal standing position
Term
decubitus
Definition
lying down, especially in a bed; i.e. later decubitus is lying on the side (decumbo = to lie down)
Term
prone
Definition
lying face down and flat
Term
recumbent
Definition
lying down
Term
supine
Definition
horizontal recumbent; lying flat on the back
Term
flexion
Definition
bending at the joint so that the angle between the bones is decreased
Term
extension
Definition
straightening at the joint so that the angle between the bones is increased
Term
abduction
Definition
movement away from the body
Term
adduction
Definition
movement toward the body
Term
rotation
Definition
circular movement around an axis
Term
eversion
Definition
turning outward i.e. a foot
Term
inversion
Definition
turning inward, i.e. a foot
Term
supination
Definition
turning upward or forward of the palmar surface (palm of the hand) or plantar surface (sole of the foot)
Term
pronation
Definition
turning downward or backward of the palmar surface (palm of the hand) or plantar surface (sole of the foot)
Term
dorsiflexion
Definition
bending of the foot or the toes upward
Term
plantar flexion
Definition
bending of the sole of the foot by curling the toes toward the ground
Term
range of motion (ROM)
Definition
total motion possible in a joint, described by the terms related to body movements, i.e. ability to flex, extend, abduct, or adduct; mesaurement in degrees
Term
goniometer
Definition
instrument used to measure joint angles
Term
arthralgia
Definition
joint pain
Term
atrophy
Definition
shrinking of muscle size
Term
crepitation

or

crepitus
Definition
grating sound sometimes made by movement of a joint or proken bones
Term
exostosis
Definition
a projection arising from a bone that develops from cartilage
Term
flaccid
Definition
flabby, relaxed or having defective or absent muscle tone
Term
hypertrophy
Definition
increase in the size of muscle
Term
hypotonia
Definition
reduced muscle tension
Term
myalgia

or

myodynia
Definition
muscle pain
Term
osteodynia
Definition
bone pain
Term
rigor, rigidity
Definition
stiffness; stiff muscle
Term
spasm
Definition
drawing in; involuntary contraction of muscle
Term
spastic
Definition
uncontrolled contractions of skeletal muscles causeing stiff and awkward movements (resembles spasm)
Term
tetany
Definition
tension; prolonged , continuous muscle contraction
Term
tremor
Definition
shaking; rhythmic muscular movement
Term
arthritis
Definition
inflammation of the joints characterized by pain, swelling, redness, warmth, and limitation of motion; there are more than 100 different types of arthritis
Term
osteoarthritis
Definition
most common form of arthritis; esp affecting weight-bearing joints (knee, hip) characterized by the erosion of articular cartilage
Term
degenerative joint disease (DJD) (also osteoarthritis)
Definition
most common form of arthritis; esp affecting weight-bearing joints (knee, hip) characterized by the erosion of articular cartilage
Term
rheumatoid arthritis
Definition
most crippling form of arthritis, charcaterized by chronic systemic inflammation most often affecting joints and synovial membranes, (especially in the hands and feet) causing ankylosis and deformity.
Term
bursitis
Definition
inflammation of a bursa
Term
chrondromalacia
Definition
softening of cartilage
Term
closed fracture
Definition
broken bone with no open wound
Term
open fracture
Definition
compound fracture; broken bone with an open wound
Term
simple fracture
Definition
a nondisplaced fracture with one fracture line that does not require extensive treatment to repair (e.g. hairline fractureFx, stress Fx, or a crack
Term
complex fracture
Definition
a displaced fracture that requires manipulation or surgery to repair
Term
fracture line
Definition
the line of the break in a broken bone (e.g. oblique, spiral, or transverse)
Term
comminuted fracture
Definition
broken into many little pieces
Term
greenstick fracture
Definition
bending and incomplete break of a bone - most often seen in children
Term
herniated disk or disc
Definition
protrusion of a degenerated or fragmented intervertebral disk so that the nucleus pulposus protrudes causing compression on the nerve root
Term
myeloma
Definition
bone marrow tumor
Term
myositis
Definition
inflammation of muscle
Term
myoma
Definition
muscle tumor
Term
muscular dystrophy
Definition
a category of genetically transmitted diseases characterized by progressive atrophy of skeletal muscles (Duchenne's is the most common)
Term
osteosarcoma
Definition
type of malignant bone tumor
Term
osteomalacia
Definition
disease marked by softening of the bone caused by calcium and vitamin D deficiency
Term
rickets
Definition
osteomalacia in children
Term
osteomyelitis
Definition
infection of bone and bone marrow causing inflammation
Term
osteoporois
Definition
condition of decreased bone density and increased prorsity, causing bones to become brittle nad to more easily fracture
Term
spinal curvatures - kyphosis
Definition
abnormal posterior curvature of the thoracic spine (humped back condition)
Term
spinal curvatures - lordosis
Definition
abnormal anterior curvature of the lumbar spine (sway-back condition)
Term
spinal curvatures - scoliosis
Definition
abnormal lateral curvature (S-shaped curve)
Term
sprain
Definition
injury to a ligament caused by joine trauma but without joint dislocation or fracture
Term
tendonitis
Definition
inflammation of a tendon
Term
magnetic resonance imaging (MRI)
Definition
a nonionizing (no x-ray) imaging technique using magnetic fields and radio frequency waves to visualize anatomic structure; used in detecting joine, tendon, and vertebral disc disorders
Term
bone scan
Definition
a nuclear scan of bone tissue to detect a tumor, malignancy, etc.
Term
radiography
Definition
an imaging modality using x-rays (ionizing radiation) to diagnose condition or impairment somewhere in the body (e.g. extremeties, ribs, back, shoulders, joint)
Term
computed tomography (CT)
Definition
a radiologic procedure using a machine called a scanner to take a series of cross-sectional x-ray images in a full circle rotation; a compueter then calculates the rates of absorption and density of the radiographs to create the image
Term
sonography
Definition
use of high frequency sound waves (ultrasound) to make an image of tissues or structures (e.g. muscles, ligaments, displacements or dislocations, and arthroscopic visualizations)
Term
amputation
Definition
partial or complete removal of a limb; AKA above-knee amputation; BKA, below knee amputation
Term
arthroplasty
Definition
repair or reconstruction of a joint
Term
arthroscopy
Definition
procedure using an arthroscope to examine, diagnose, and repair a joint from within
Term
open reduction, internal fixation (ORIF)
Definition
internal surgial repair of a fracture by bringing bones back to alignment and fixing them into place with devices such as plates, screws, and pins
Term
closed reduction, external fixation of a fracture
Definition
external manipulation of a fracture to regain alignment along with application of an external device to protect and hold the bone in place while healing
Term
casting
Definition
use of a stiff, solid dressing around a limb or other body part to immobilize it during healing
Term
splinting
Definition
use of a rigid device to immobilize or restrian a broken bone or injured body part
Term
traction (Tx)
Definition
application of a pulling force to a fractured bone or dislocated joint to maintain proper position for healing
Term
physical therapy
Definition
treatment to rehabilitate patients disabled by illness or injury, involving many different modalities (methods) such as exercise, hydrotherapy, diathermy, and ultrasound
Term
prothesis
Definition
an artifical replacement for a missing body part or a device used to improve a body function such as an artificial limb, hip, or joint
Term
analgesic
Definition
a drug that relieves pain
Term
narcotic
Definition
a potent analgesic with addictive properties
Term
anti inflammatory
Definition
a drug that reduces inflammation
Term
antipyretic
Definition
a drug that reduces fever
Term
antipyretic
Definition
a drug that reduces fever
Term
nonsteroidal anti-inflammatory drug (NSAID)
Definition
a group of drugs with analgesic, anti-inflammatory, and antipyretic properties (e.g. ibuprofen, asprin) commonly used to treat arthritis
Term
ankly/o
Definition
crooked, stiff
Term
arthr/o
articul/o
Definition
joint
Term
brachi/o
Definition
arm
Term
cervic/o
Definition
neck
Term
chondr/o
Definition
cartilage
Term
cost/o
Definition
rib
Term
crani/o
Definition
skull
Term
dactyl/o
Definition
digit
Term
femor/o
Definition
femur
Term
fibro/o
Definition
fiber
Term
kyph/o
Definition
hump-backed
Term
lei/o
Definition
smooth
Term
lord/o
Definition
bent
Term
lumb/o
Definition
loin, lower back
Term
myel/o
Definition
bone marrow, spinal cord
Term
my/o
myos/o
muscul/o
Definition
muscle
Term
oste/o
Definition
bone
Term
patell/o
Definition
knee cap
Term
pelv/i
pel/o
Definition
hip bone, pelvic cavity
Term
radi/o
Definition
radius
Term
rhabd/o
Definition
rod shaped, striated
Term
sarc/o
Definition
flesh
Term
scoli/o
Definition
twisted
Term
spondyl/o
vertebr/o
Definition
vertebra
Term
stern/o
Definition
sternum, breast bone
Term
ten/o
tend/o
tendin/o
Definition
tendon, to stretch
Term
throac/o
Definition
chest
Term
ton/o
Definition
tone, tension
Term
uln/o
Definition
ulna
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