Ch 14 - Musculoskeletal System Flashcards
periosteum
outermost layer of the bone, made up of fibrous tissue
compact bone
dense, hard layers of bone tissue that lie underneath the periosteum
cancellous bone
contains little spaces like a sponge and is encased in the layers of compact bone
aka spongy bone
endosteum
membranous lining of the hollow cavity of the bone
diaphysis
shaft of the long bones
greek word diaphusis meaning state of growing in between
epiphysis
end of each long bone
bone marrow
material found in the cavities of bones
red marrow
thick, bloodlike material found in flat bones and ends of long bones; location of blood cell formation
yellow marrow
soft, fatty material found in the medullary cavity of long bones
maxilla
upper jawbone
mandible
lower jawbone
vertebral column
made up of bones called vertebrae 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
cervical vertebrae
first set of seven bones, forming the neck
C1-C7
thoracic vertebrae
second set of 12 vertebrae
articulates with the 12 pairs of ribs to form the outward curve of the spine
T1-T12
lumbar vertebrae
third set of five larger vertebrae, which forms the inward curve of the spine
L1-L5
sacrum
next five vertebrae, which fuse together form a triangular bone positioned between the two hip bones, forming joints called the sacroiliac joints
coccyx
four vertebrae fused together to form the tailbone
lamina
part of the vertebral arch
acromion processes
extension of the scapula, which forms the superior point of the shoulder
sternum
breastbone
xiphoid process
lower portion of the sternum
humerous
upper arm bone
ulna and radius
lower arm bones
olecranon process
projection at the proximal end of the ulna that forms the bony point of the elbow