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chapter 7
bone tissue
35
Anatomy
Graduate
06/22/2011

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Term
Osseous or bony tissue
Definition
predominant in bones, present are blood marrow, cartilage, adipose, nerve, and fibrocartilage
Term
axial skeleton consist?
Definition
skull , middle-ear bones, hyoid bone, rib cage, vertebral column, and sternum
Term
appendicular skeleton consist?
Definition
upper and lower extremities and pectoral and pelvic girdles
Term
Long bones
Definition
(longer than wide) ex. humerus and femur
Term
Short bones
Definition
(equal in length and width) ex. carpals and tarsals
Term
Flat bones
Definition
ex. cranium, ribs, sternum
Term
Irregular bones
Definition
includes vertebrate and sphenoid bone
Term
features of long bone
Definition
outer layer of compact bone, medullary cavity containing bone marrow and spongy bone at its ends
Term
Shaft of long bone
Definition
diaphysis, expanded ends are the epiphyses
Term
Osteogenic cells
Definition
precursor cells of other bone cells
Term
Osteoblasts
Definition
bone-forming cells and build bone matrix
Term
Osteocytes
Definition
osteoblasts trapped in bone matrix; responsible for maintenance of bone
Term
Osteoclasts
Definition
done dissolving cells
Term
bone consists
Definition
cells, fibers, ground substance
Term
osteon
Definition
basic structural unit of compact bone
Term
osteon composed
Definition
lamellae around haversian canals
Term
within lamellae lies
Definition
lacunae with osteocytes
Term
trabeculae
Definition
spongy bone consists lattice of slender rods, spines
Term
bone marrow occupies
Definition
space within trabeculae
Term
hemopoietic
Definition
in children ,red bone marrow ; produces blood cells and fills meduallary cavity
Term
in adults
Definition
yellow bone marrow stores fat replaces most red marrow 
Term
older adults
Definition
most yellow marrow replaced by gelatinous bone marrow
Term
ossification
Definition
bone formation
Term
intramembranous ossification
Definition
membrane of soft tissue that represents location of future flat bone
Term
osteoblasts trapped
Definition
bone matrix and become osteocytes
Term
endochondral ossification
Definition
bone formation from cartilage
Term
ossification begins
Definition
primary ossification center
Term
osteoblasts begin
Definition
secrete bone matrix
Term
cartilage cells
Definition
begin die; behins to form disphysis
Term
secondary ossification center
Definition
beginto form at the end of bone (epiphysis)
Term
bone tissue
Definition
replaces cartilage except on endsof bone (articular cartilage)
Term
cartilage remains
Definition
until adulthood at epiphyseal plates
Term
bone changes
Definition
18%ca;cium 5%adult skeleton undergoes remodeling at any 1 time
Term
mineralization
Definition
calcium and phosphate deposited in done
Term
Mineral resorption
Definition
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