Chapter 3 Flashcards
ossification
bone forming from fibrous tissue
osteoblasts
immature bone cells that make bone tissue
osteoclasts
phagocytic bone cells that eat bony tissue away from the medullary cavity of the long bone
osteocytes
matures bone cells
medullary cavity
inner space of long bone, contains yellow marrow
articular cartilage
covers joint surfaces of bones
meniscus
curved fibrous cartilage found in some joints that cushions
synarthroses joint
no movement, eg suture (jagged line where bones meet)
amphiarthroses joint
slight movement (eg symphysis: 2 bones join and function as 1, mandible)
AKA cartilaginous joint
diarthroses joint
free movement (eg. synovial joints - ball and socket)
fontanelle
soft spot remaining at junction of sutures, usually closes after birth
enarthrosis
ball and socket joints
cortical bone
hard outer layer AKA compact
cortex
bark/shell
cancellous bone
spongy inner bone
epiphysis
wide end of long bone (proximal and distal ends)
cancellous
diaphysis
shaft of long bone
compact
physis
cartilage of long bone AKA growth plate AKA epiphyseal cartilage
metaphysis
wide part of long bone adjacent to physis
- considered part of epiphysis in adults
periosteum
fibrous tissue covering outer bone
endosteum
fibrous tissue lining medullary cavity
long bones
shaft + 2 ends + marrow cavity
short bones
cube, no marrow cavity
flat bones
thin (pelvis)
pneumatic bones
sinus containing bones
irregular bones
unpaired (vertebrae)
sesamoid bones
embedded in a tendon (patella)
arthrodial/condyloid joints
joints with oval projections that fit in a socket (carpal joints)
trochoid/pivot joints
pulley-shaped (atlas-axis connection)
saddle joints
only one = carpometacarpal of thumb. allows it to be opposable, can move any way
hinge/ginglymus joints
motion in one plane (elbow)
gliding joints
glide over each other (between vertebrae)
ligament
band of fibrous CT that connects one bone to another
tendon
band of CT that connects muscle to bone
bursa
fibrous sac that acts as a cushion in areas of friction
(more than 1 = bursae)
synovial membrane
in bursae and synovial joints
secretes synovial fluid to allow for smooth movement
foramen
opening in bone for tissues to pass
sinuses
air or fluid filled spaces in skull
brachycephalic
short wide skull
dolichocephalic
long narrow skull
mesocephalic
average skull
trochanters
large flat broad projections on femur
condyles
rounded projection on bone
aperture
opening
canal
tunnel
crest
high projection
crista
ridge
dens
toothlike structure on bone
eminence
surface projection
facet
smooth area
fissure
deep cleft
fossa
hollow depressed area
fovea
small pit
head
major protrusion
lamina
thin flat plate
line
low projection/ridge
malleolus
rounded projection
meatus
passage
process
projection
protuberance
projecting part
ramus
branch/smaller structure given off by larger structure
sinus
space/cavity
spine
sharp projection
sulcus
groove
suture
seam
trochlea
pulley-shaped structure in which other structures articulate
tubercle
small rounded projection
tuberosity
projecting part
arththrocentesis
puncture of joint to remove fluid
arthrography
injection of joint with contrast material for radiography
arthroscopy
visual exam of joint with scope
densitometer
device that measures bone density using x-rays
goniometer
instrument that measures angles of joints
radiology
study of internal structures after exposing them to radiation
ankylosis
loss of mobility from disease/injury
arthralgia
joint pain
arthritis
joint inflammation
arthrodynia
joint pain
arthropathy
joint disease
bursitis
bursa inflammation
chondromalacia
cartilage softening
chondropathy
cartilage disease
discospondylitis
inflammation of intervertebral disc and vertebrae
epiphysitis
growth plate inflammation
exostisis
growth on bony surface
gouty arthritis
inflammation of uric acid crystals in joint
hip dysplasia
growth on pelvic joint causing head of femur and acetabulum to not align
herniated disc/ruptured disc
intervertebral disc disease, rupture or protrusion of cushioning disc resulting in pressure on spinal cord
kyphosis
dorsal curvature of spine (hunchback)
lordosis
ventral curve of spine (swayback)
luxation
dislocation of bone from its joint
myeloma
tumor of cells from hematopoietic tissues of bone marrow
ostealgia
bone pain
osteitis
bone inflammation
osteoarthritis
degenerative joint disease
osteochondrosis
degeneration of bone and cartilage followed by recalcification
osteochondrosis dissecans
degeneration of bone and cartilage followed by recalcification with dissecting flap of articular cartilage (osteophyte)
osteophyte
detached piece of articular cartilage AKA joint mice
osteomalacia
bone softening
osteomyelitis
bone + marrow inflammation
osteonecrosis
death of bone tissue
osteoporosis
loss of bone density and increase of porosity
osteosclerosis
hardening of bone
periostitis
inflammation of outermost covering of bone
rheumatoid arthritis
autoimmune disorder of CT and joints
sequestrum
piece of dead bone partially/fully detached from healthy bone
spondylitis
vertebrae inflammation
spondylosis
any degenerative vertebrae disorder
spondylosis deformans
degeneration of articular processes of vertebrae
spur
bony projection
subluxation
partial dislocation
synovitis
synovial membrane inflammation
avulsion fracture
site of muscle/tendon/ligament is detached by forceful pull
callus
bulging deposit around area of bone fracture that may become bone
closed fracture
no open wound on skin AKA simple fracture
comminuted fracture
splintered into multiple pieces
compression fracture
bones pressed together
crepitation
audible cracking when broken bones move together
displaced fracture
fractured parts out of line
greenstick fracture
broken only on one side, other bent AKA incomplete fracture
immobilization
putting a cast on
manipulation AKA reduction
attempted realignment of bone
oblique fracture
break diagonal to long axis
open fracture
open wound on skin AKA compound fracture
pathologic fracture
broken in area weakens by disease
physeal fracture
broken at epiphyseal line/growth plate
spiral fracture
bone is twisted apart
stress fracture
broken by repetitive local stress
transverse fracture
broke straight across
arthrodesis
surgical fusion of a joint or spinal vertebrae
chemonucleolysis
dissolving center of intervertebral disc by injecting foreign substance
craniotomy
incision into skull
external fixation
immobilizing bone near fracture through casts, splints, rods, pins
laminectomy
removal of dorsal arch of vertebrae
internal fixation
immobilization directly on fracture through pins, plates, wires, screws
ostectomy
removal of bone
osteocentesis
puncture of bone
osteodesis
fusion of bone
osteopexy
fixation of bone to body wall
osteoplasty
repair of bone
osteostomy
permanent new opening in bone
osteotomy
incision on bone
trephination
cutting into bone with trephine (circular saw)
vertebral extension
ventral arching
vertebral flexion
dorsal arching
fixation
joint immobilized in a fixed position
malarticulations
connections between bones not lined up
ambulation
moving from one place to another
fascia
sheet of fibrous CT
lines alba
fibrous band of CT where abdominal muscles attach (eg of a tendon)
aponeurosis
fibrous sheet where muscle fibers can attach
synergists/agonistic
muscles that’s contract at the same time as another muscle
neuromuscular junction
point where nerve endings meet muscle cells
tonus
balanced muscles tension
muscle origin
where a muscle begins
muscle insertion
where a muscle ends
flexor
muscles that bends at joint
extensor
muscle that straightens a limb
levator
muscle that raises
depressor
muscle that lowers
rotator
muscles that turns body part on its axis
supinator
muscle that rotates palmar/plantar surface upward
pronator
muscle that rotated palmar/plantar surface downward
pectoral muscles
chest
epaxial muscles
above pelvic axis
intercostal muscles
between ribs
infraspinatus muscles
beneath spine
supraspinatus muscles
above spine
orbicularis muscles
surround another structure
azyguous
not paired
latissimus
broad muscle
gracilis
narrow muscle
deltoid
triangle shaped muscles
quadratus
square shaped muscles
rhomboideus
diamond shaped muscles
scalenus
unequally 3 sided muscles
serratus
saw-toothed muscles
teres
cylindrical muscles
electromyography
recording muscle strength
ataxia
lack of control of muscle movement, wobbly
atonic
lacking muscle tone
fascitis
fascia inflammation
fibroma
CT tumor
hernia
protrusion of body part through containing tissues
laxity
looseness
leiomyoma
smooth muscle tumor
leiomyositis
smooth muscle inflammation
myasthenia
muscles weakness
myoclonus
muscle spasm
myoma
muscle tumor
myopathy
muscle disease
myositis
muscle inflammation
myotonia
delayed relaxation of muscle after contracting
rhabdomyona
tumor of striated muscle
tendinitis
tendon inflammation
tetany
twitching
myectomy
removal of muscle
myoplasty
repair of muscle
myotomy
incision in muscle
tenectomy
removal of tendon
tenotomy
incision in tendon