Quiz 3 - Compact & Spongy bone Flashcards
compact bone
dense, solid bone making up the outer layers of most bones
structure(s) of compact bone
osteon lamellae central canal perforating canals lacunae canaliculi
osteon
basic structural unit of compact bone
lamellae
layers of bone matrix parallel to long axis of bone, contain lacunae in between layers
central canal
central channel containing blood vessels and nerves
perforating canals
channels perpendicular to the central canal, connecting blood and nerve supply to central canal
lacunae
small cavities that contain osteocytes
canaliculi
small canals that connect lacunae to each other and central canal
spongy bone
forms open framework, much lighter than compact
sturcture(s) of spongy bone
trabeculae
trabeculae
parallel struts or thick branching plates
structure of a long bone
epiphysis
diaphysis
metaphysis
epiphysis
ends of a bone
diaphysis
shaft
metaphysis
connects epiphysis and diaphysis