bone structure

Question 1

osteon

Answer 1

cylinder-shaped unit of compact bone

Question 2

central canal

Answer 2

contains blood vessels and nerves

Question 3

concentric lamella

Answer 3

concentric ring of matrix around central canal of osteon

Question 4

interstitial lamella

Answer 4

matrix between osteons, composted of the remains of old osteons

Question 5

circumferential lamella

Answer 5

matric that runs parallel to the surface of bone

Question 6

lacuna

Answer 6

small chamber for an osteocyte

Question 7

bone extracellular matrix

Answer 7

collagen and calcium phosphate

Question 8

canaliculus

Answer 8

minute tube containing cellular process

Question 9

perforating (volkmann) canal

Answer 9

runs perpendicular to cental canal;contains blood vessels and nerves

Question 10

epiphysis

Answer 10

enlarged ends

Question 11

epiphyseal plate

Answer 11

growth zone of hyaline cartilage

Question 12

articular cartilage

Answer 12

on ends of epiphyses

Question 13

epiphyseal line

Answer 13

site of original epiphyseal plate that has completely ossified

Question 14

diaphysis

Answer 14

shaft between epiphyses

Question 15

periosteum

Answer 15

strong membrane around bone of dense irregular connective tissue

Question 16

compact (dense) bone

Answer 16

form diaphysis and epiphyseal surfaces

Question 17

spongy (cancellous) bone

Answer 17

within epiphyses trabeculae; structural lattice of plates in spongy bone

Question 18

medullary (marrow) cavity

Answer 18

hollow chamber in diaphysis; contains bone marrow

Question 19

endosteum

Answer 19

thin membrane of reticular connective tissue that lines the medullary cavity

Question 20

yellow bone marrow

Answer 20

occupies medullary cavity and stores adipose tissue

Question 21

red bone marrow

Answer 21

occupies spongy bone in some epiphyses and flat bones and produces blood cells