Ch. 3 Skeletal System Flashcards
Oss/e, oss/i, oste/o, ost/o
bone
myel/o
bone marrow, spinal cord
chondr/o
cartilage
synovi/o, synov/o
synovial membrane/fluid
arthr/o
joints
burs/o
bursa
ligament/o
ligaments
periosteum
tough fibrous tissue. outermost covering of bone
compact bone
dense, hard, and very strong. protective outer layer
spongy bone
lighter, not as strong. surrounded by compact bone
medullary cavity
shaft of long bones
red bone marrow
in spongy bone. makes RBCs, hemoglobin, WBCs, and thrombocytes
yellow bone marrow
fat storage area
cartilage
smooth rubbery connective tissue. shock absorber. ear/nose. articular and meniscus
articular cartilage
covers surface of joints
meniscus cartilage
curved fibrous cartilage found in some joints
diaphysis
shaft of long bone
epiphysis
wide end of bone. covered with cartilage. proximal and distal
foramen
opening in bone for blood vessels, nerves, and ligaments to pass
process
normal projection on surface of bone that serves as attachment point for muscles and tendons
fibrous joints
inflexible layers of dense connective tissue. hold bones tightly together. not movable. only movable in infants.
fontanelles
soft spots. on skull of newborn. help with birth
cartilagious joints
allow slight movement. bones connected entirely by cartilage. (where ribs connect to sternum)
pubic symphysis
cartilagious joint. allow some movement for birth. between pubic bones
synovial joints
permit variety of movement. ball and socket, hinge, etc.
synovial capsule
outermost layer of strong fibrous tissue
synovial membrane
lines capsule and secretes synovial fluid
synovial fluid
flows in synovial cavity. lubricant to make movements smooth.
ligaments
bands of fibrous tissue that form joints. bone to bone or bone to cartilage
bursa
fibrous sac that acts as cushion to ease movement in friction areas
axial skeleton
protects major organs of nervous, resp., and circulatory systems (spine, ribs)
Appendicular skeleton
makes body movements possible. protects digestion, excretion, and reproduction organs
cranium
encloses brain
bone density testing
determine loss or change in bone desity
bone marrow transplant
treat certain cancers. leukemia. lymphoma.