types of bone

Question 1

long

Answer 1

traditonal model for bone structure

Question 2

flat

Answer 2

internal layer of spongey sandwhiched between layer of compact
no diaphysis or epiphysis

Question 3

short/irregular

Answer 3

compact surfaces surrounding spongy center
no diaphysis
has epiphysis and epiphsyiseal plate
small spaces usually filled with marrow

Question 4

woven bone

Answer 4

first bone formation in ossification
weak bc collagen fibers randomly oriented

Question 5

woven bone formed when

Answer 5

fetal development and bone repair

Question 6

woven bone remodeled into

Answer 6

lamellar bone

Question 7

lamellar bone

Answer 7

mature bone
collgaen fibers lay parallel to one another but adjacent to other layers
osteocytes in lacunae

Question 8

spongey bone

Answer 8

inner layer of bone
very porous with less bone matrix

Question 9

spongey bone covered by

Answer 9

endosteum

Question 10

Trabeculae of spongy bone

Answer 10

interconnecting rods or plates; like scaffolding
oriented along lines of stress

Question 11

between trabeculae of spongy bone is

Answer 11

bone marrow and blood vessels

Question 12

trabeculae get nutrients by

Answer 12

osteocyte connections
no blood vessels penetrate

Question 13

compact bone

Answer 13

outer layer
more solid with more matrix

Question 14

compact bone gets nutrients by

Answer 14

blood vessels
enter bone itself

Question 15

Osteon

Answer 15

functional unit of long bone
concentric rings of matrix around central canal (blood vessel)

Question 16

central canal of osteon

Answer 16

runs parrallel to bones axis
lined with endosteum
has blood vessels, nerves and loose connective tissue

Question 17

circumferential lamellae

Answer 17

outer surface of compact bone
some compact bone so thin only have circumferential lamellae and no osteon

Question 18

interstial lamellae

Answer 18

remnants of concentric or circumferential lamellae in bone left in bone remodeling process

Question 19

perferating canals of compact bone

Answer 19

delivery nutrients to central canal
run perpendicular of long axis of bone
contain blood vessels from periosteum or medullary cavity