Chap 5: Bone (bone histogenesis) (exam 2) Flashcards
remodeling of bone happens immediately meaning that irregular trabeculae become more what
parallel osteons
Vascular mesechyme between trabeculae/osteons can develop into what
bone marrow and endosteum
all areas of ossification will eventually do what
fuse
endochondral ossification occurs where
most long and short bones
During the general process of endochondral ossification blood vessels invade what?
invade the hyaline cartilage into the middle of the chondrogenic perichondrium
The blood vessels will bring what
Oxygen
in ECO oxygen make osteogenic cells turn into
osteoblasts
Osteoblasts will secrete osteoid where
just inside the periosteum to form a periosteal collar
what does the periosteal collar do in endochondral ossification
prevents diffusion of oxygen and nutrients to chondrocytes below
provide structural support
the periosteal bud is what
the original invading capillary along with osteoprogenitor and hemopoietic stem cells
in endochondral ossification bone growth advances in which direction
toward epiphyseal plates
in endochondral ossification cartilage continues to grow within epiphysis by what
interstitial growth
Remodeling in the diaphysis will cause what
eliminate calcified cartilage, create marrow cavity, provide osteon structure, create volkmann’s canals
what are some characteristics of secondary centers of ossification
NO periosteal collar
does NOT result in length
articular cartilage remains
an increase in length results from what?
bone in metaphysis growing towards epiphysis as cartilage in epiphyseal growth plate continues to develop
