skeletal system
cartilage cells die as calcium is deposited in cartilage, leaving behind holes.
3
osteoblasts secrete extracellular matric in the bones holey interior. Trapped osteoblasts become osteocytes.
4
the epiphyseal line replaces the epiphyseal plate
5
Large numbers of [osteocytes] are found in the inner periosteum layer.
false
when a bone forms from "pre dermal" tissue (i.e tissue that will become the dermis of the skin), the process is endochondral ossification
false
secrete extracellular matrix
fibroblasts
provides vitamin D, which is needed for calcium in the extracellular matrix
integumentary
increases bone strength and viability by pulling on bones
muscular
conveys the sense of pain in bone and joints
nervous
Located in the periosteum and endosteum
osteoclasts
located in lacunae
osteocytes
Important bone functions include:
protection of the brain, protection of the skin and limb musculature
the growth spurt of puberty is triggered by
sex hormones
in appositional growth, bone resorption occurs on the periosteal surface .
true
primary ossification centers appear in the epiphyses of a long bone
true
the long bones of a fetus ae constructed of hyaline cartilage
true
when trapped in lacunae, osteoblast change into osteocytes
true