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39 Cards in this Set

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growth accomplished by the addition of new layers onto hose perviously formed
appositional growth
any o the fibrous bands extending from the capsule into the interior of an organ
trabecula
strut or thin plate of bone in spongy bone
trabecula
blood cell formation
hematopoiesis
connective tissue that forms the bony skeleton
bone
aka ossification
osteogenesis
process of bone formation
osteogenesis
bone forming cells
osteoblasts
mature bone cell
osteocytes
system of interconnecting canals in the microscopic structure of adult compact bone
osteon
aka osteon
haversian system
small space, cavity, or depression
lacunae
__ in bone or cartilage are occupied by cells
lacunae
a layer, such as of bone matrix in an osteon of compact bone
lamella
a break in a bone
fracture
extremely small tubular passage or channel
canaliculi
the number of ones in the adult skeleton
206
bone fragments into 3 or more pieces
comminuted
fracture common in the aged, whose bones are more brittle
comminuted
bone is crushed
compression
common in porous bones subjected to extreme trauma, as in a fall
compression
ragged break occurs when excessive wisting forces are applied to a bone
spiral
common sports fracture
spiral
epiphysis separates from the diaphysis along the epiphyseal plate
epiphyseal
btends to occure where cartilage cells are dying and calcification of the matrix is occuring
epiphyseal
broken bone portion is pressed inward
depressed
typical of skull fracture
depressed
bone breaks incompletely
greenstick
common in children
greenstick
when the bone is inadequately mineralized
osteomalacia
osteoid is produced but Ca salts are not deposited softening the bone
osteomalacia
analogous disease in children
rickets
caused by insufficient Ca in the diet or by a vit. D deficiency
rickets
excessive and haphazard bone deposit and resorption
pagets disease
a group of diseases in which bone resorption outpaces bone deposit
osteoporosis
when the bones become so brittle and weak that a sneeze can break them
osteoporosis
occurs mainly in the aged and postmenopausal women
osteoporosis
the long bones contain:
diaphysis, epiphyses, membranes
consist of thin plates or periosteum-covered compact bone (outside) and endosteu-covered spongy bone within
short, irregular, and flat bones