Musculoskeletal Flashcards
organ made up of hard connective tissue with a dense outer layer and spongy inner layer
bone
dense, hard layers of bone tissue that lie underneath the periosteum
compact bone
outermost layer of the bone, made up of fibrous tissue
periosteum
contains little spaces like a sponge and is encased in the layers of compact bone (also called spongy bone)
cancellous bone
membranous lining of hollow cavity of bone
endosteum
shaft of long bone
diaphysis
end of each long bone
epiphysis
material found in bone cavities
bone marrow
thick, bloodlike material found in flat bones and the ends of long bones; location of blood cell formation
red marrow
soft, fatty material found in the medullary cavity of long bones
yellow marrow
upper jaw bone
maxilla
lower jawbone
mandible
made up of bones called vertebrae (pl.) or vertebra (s.) through which the spinal cord runs. The vertebral column protects the spinal cord, supports the head, and provides points of attachment for ribs and muscles.
vertebral column
first set of seven vertebrae, forming the neck
cervical vertebrae (c1-c7)
second set of 12 vertebrae. They articulate with the 12 pairs of ribs to form the outward curve of the spine.
thoracic vertebrae (T1-T12)
third set of five larger vertebrae, which forms the inward curve of the spine
lumbar vertebrae (L1-L5)
next five vertebrae, which fuse together to form a triangular bone positioned between the two hip bones, forming joints called the sacroiliac joints
sacrum
four vertebrae fused together to form the tailbone
coccyx
flat plates of bone that form the vertebral arch, the posterior portion of the spinal canal
laminae (lamina)
collarbone
clavicle
shoulder blade
scapula
extension of the scapula, which forms the superior point of the shoulder
acromio process
breastbone
sternum
lower portion of the sternum
xiphoid process