Phys Ch 5 Vocab Flashcards
(55 cards)
Long Bones
Have a greater length than width
Short Bones
Cubed shaped; spongy except for the surface
Flat Bones
Thin and composed of two or less parallel plates of compact bone enclosed in a layer of spongy bone
Irregular Bones
Complex shapes
Sesamoid Bones
small bones between the cranial bones in the skull
Sutural Bones
small bones in tendons due to the build-up of pressure
Diaphysis
the long shaft-like portion of a long bone
Metaphysis
immature bone in between diaphysis and epiphysis
Epiphysis
the extremities or the ends of the bone
Compact Bones
bone with few spaces in between
Spongy Bones
bones with many spaces, like a sponge
Epiphyseal Plate
the site where the bone growth occurs in length
Articular Cartilage
a thin layer of hyaline cartilage covering the epiphysis where bone forms a joint with another bone
Periosteum
a membrane around the bone not covered by articular cartilage
Medullary Cavity
bone marrow cavity
Endosteum
the lining of the medullary cavity that consists of osteoprogenitor cells
Osteoprogenitor
cells that eventually help create osseous tissue
Osteoblasts
cells that form bone
Osteoclasts
cells that reabsorb bone
Osteocytes
bone cells
Ossification
creating bones
Calcification
osteoblasts deposit salts and begin to harden
Perforating Canals
connect the bones with blood vessels
Central Canals
canals that carry blood and nutrients lengthwise in the bones
