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Musculoskeletal

TermDefinition
acetabulum cup-shaped depression in the hip bone into which the top of the femur fits
acromion part of the scapula that connects to the clavicle
amphiarthrosis (p.amphiarthoses) cartilaginous joint having some movement at the union of two bones
ankle hinged area between the lower leg bones and the bones of the foot
articular cartilage cartilage at a joint
articulation point at which two bones join together to allow movement
atlas first cervical vertebra
axis second cervical vertebra
bone hard connective tissue that forms the skeleton of the body
bone head upper, rounded end of a bone
bone phagocyte bone cell that ingests dead bone & bone debris
bursa (p.bursae) sac lined with a synovial membrane that fills the spaces between tendons & joints
calcaneus heel bone
calcium mineral important in the formation of bone
cancellous bone spongy bone with a lattice like structure
cardiac muscle striated involuntary muscle of the heart
carpus, carpal bone wrist; wrist bone
cartilage flexible connective tissue found in joints, fetal skeleton, & the lining of various parts of the body
cartilaginous disk thick, circular mass of cartilage between the vertebrae of the spinal column
cervical vertebrae seven vertebrae of the spinal column located in the neck
clavicle curved bone of the shoulder that joins to the scapula; collar bone
coccyx small bone consisting of four fused vertebrae at the end of the spinal column; tailbone
compact bone hard bone with a tightly woven structure
condyle rounded surface at the end of a bone
crest bony ridge
diaphysis long middle section of a long bone; shaft
diarthroses (s. diarthrosis) freely movable joints
disk *see cartilaginous disk
dorsal vertebrae thoracic vertebrae
elbow joint between the upper arm & the forearm
endosteum lining of the medullary cavity
epiphyseal plate cartilaginous tissue that is replaced during growth years, but eventually calcifies & disappears when growth stops
ethmoid bone irregular bone of the face attached to the sphenoid
ethmoid sinuses sinuses on both sides of the nasal cavities between each eye & the sphenoid sinus
fascia (p. fasciae) sheet of fibrous tissue the encloses muscles
femur long bone of the thigh
fibula smallest long bone of the lower leg
fissure deep furrow or slit
flat bones thin, flatten bones that cover certain areas, as of the skull
fontanelle soft, membranous section on top of an infant's skull
foramen opening or perforation through a bone
foramen magnum opening in the occipital bone through which the spinal cord passes
fossa (p. fossae) depression, as in a bone
frontal bone large bone of the skull that forms the top of the head & the forehead
frontal sinuses sinuses above the eyes
heel back, rounded portion of the foot
humerus long bone of the arm connecting to the scapula on top & the radius & the ulna at the bottom
ilium wide portion of the hip bone
insertion point at which muscle attaches to a movable bone
intervertebral disk *see cartilaginous disk
involuntary muscle muscle not movable at all
irregular bones any of a group of bones with a special shape tot fit into certain areas of the skeleton, such as the skull
ischium one of three fused bones that form the pelvic girdle
join place of joining between tow or more bones
lacrimal bone thin, flat bone of the face
lamina (p. laminae) thin, flat part of either side of the arch of a vertebra
ligament sheet of fibrous tissue connecting & supporting bones; attaches bone to bone
long bone any bone of the extremities with a shaft
lumbar vertebrae five vertebrae of the lower back
malleolus (p.malleoli) rounded protrusion of the tibia or fibula on either side of the ankle
mandible u-shaped bone of the lower jaw
mandibular bone mandible
marrow connective tissue filling the medullary cavity, often rich in nutrients
mastoid process protrusion of the temporal bone that sits behind the ear
maxillary sinus sinus on either side of the nasal cavity below the eyes
medullary cavity soft center cavity in the bone that often holds marrow
metacarpal one of the five bones of the hand between the wrist and the fingers
metaphysis section of a long bone between the epiphysis & diaphysis
metatarsal bones bones of the foot between the instep (arch) & the toes
muscle contractile tissue that plays a major role in body movement
musculoskeletal system system of the body including the muscles & skeleton
nasal bones bones that form the bridge of the nose
nasal cavity cavity on either side of the nasal septum
neural canal space through which the spinal cord passes
nucleus pulposus fibrous mass in the center portion of the intervertebral disk
occipital bone bone that forms the lower back portion of the skull
olecranon curved end of the ulna to which tendons of the arm muscles attach; bony prominence of the elbow
origin point at which muscles attach to stationary bone
osseous tissue connective tissue into which calcium salts are deposited
ossification hardening into bone
osteoblast cell that forms bone
osetoclast large cell that reabsorbs & removes osseous tissue
osteocyte bone cell
palatine bone bone that helps form the hard palate & nasal cavity; located behind the maxillary bones
parietal bone flat, curved bone on either side of the upper part of the skull
patella large, sesamoid bone that forms the kneecap
pelvic cavity cup-shaped cavity formed by the large bones of the pelvic girdle; contains female reproductive organs, sigmoid colon, bladder, & rectum
pelvic girdle hip bones
pelvis cup-shaped ring of bone & ligaments at the base of the trunk
periosteum fibrous membrane covering the surface of bone
phalanges (s. phalanx) long bones of the fingers & toes
phosphorus mineral important to the formation of bone
process bony outgrowth or projection
pubes anteroinferior portion of the hip bone
pubic symphysis joint between the 2 pubic bones
radius shorter bone of the forearm
rib one of the 24 bones that form the chest wall
sacrum next-to-last spinal vertebra made up of five fused bones; vertebra that forms part of the pelvis
scapula large flat bone that forms the shoulder blade
sella turcica bony depression in the sphenoid bone where the pituitary gland is located
sesamoid bone bone formed in a tendon over a joint
shin anterior ridge of the tibia
short bones square-shaped bones with approximately equal dimensions on all sides
sinus hollow cavity, especially either of two cavities on the sides of the nose
skeleton bony framework of the body
smooth muscle fibrous muscle of internal organs that acts involuntarily
sphenoid bone bone that forms the base of the skull
sphenoid sinus sinus above & behind the nose
spinal column column of vertebrae at the posterior of the body, from the neck to the coccyx
spinous process protrusion from the center of the vertebral arch
spongy bone bone with an open latticework filled with connective tissue or marrow
sternum long, flat bone that forms the midline of the anterior of the thorax
striated muscle muscle with a ribbed appearance that controlled at will
styloid process peg-shaped protrusion from a bone
sulcus (p. sulci) groove or furrow in the surface of bone
suture joining of two bone parts with a fibrous membrane
symphysis type of cartilaginous joint uniting two bones
synarthrosis fibrous joint with no movement
synovial fluid fluid that serves to lubricate joints
synovial joint a joint that moves
synovial membrane connective tissue lining the cavity of joints & producing the synovial fluid
tarsus, tarsal bones seven bones of the instep (arch of the foot)
temporal bone large bone forming the base & sides of the skull
temporomandibular joint joint of the lower jaw between the temporal bone & the mandible
tendon fibrous band that connects muscle to bone or other structures
thoracic vertebrae 12 vertebrae of the chest area
thorax part of the trunk between the neck & the abdomen; chest
tibia larger of the two lower leg bones
transverse process protrusion on either side of the vertebral arch
trochanter bony protrusion at the upper end of the femur
true ribs seven upper ribs of the chest that attach to the sternum
tubercle slight bony elevation to which a ligament or muscle may be attached
tuberosity large elevation in the surface of a bone
ulna larger bone of the forearm
vertebra (p. vertebrae) one of the bony segments of the spinal column
vertebral body main portion of the vertebra, separate from the arches of the vertebra
vertebral column spinal column
visceral muscle smooth muscle
vitamin D vitamin important to the formation of bone
voluntary muscle striated muscle
vomer flat bone forming the nasal septum
zygomatic bone bone that forms the cheek
Created by: Kass.Ignacio