Lesson 4.1

Question 1

articular cartilage

Answer 1

dense, white, connective tissue that covers the articulating surfaces of bones at joints.

Question 2

bone marrow

Answer 2

material with rich blood supply found within the marrow cavity of long bones;yellow marrow stores fat and red marrow is active in producing blood cells.

Question 3

cortical bone

Answer 3

dense, solid bone that covers the outer surface of all bones and is the main form of bone tissue in the long bones.

Question 4

diaphysis

Answer 4

the shaft of a long bone

Question 5

endosteum

Answer 5

membrane lining the medullary cavity.

Question 6

epiphyseal plate

Answer 6

growth plate near the ends of long bones where osteoblast activity increases bone length.

Question 7

epiphysis

Answer 7

the bulbous end of the long bone

Question 8

Haversian Canals

Answer 8

major passageways running in the direction of the length of long bones, providing paths for blood vessels.

Question 9

hematopiesis

Answer 9

process of blood cell formation

Question 10

lacunae

Answer 10

tiny cavities laid out in concentric circles around the Haversian Canals.

Question 11

Medullary Cavity

Answer 11

central hollow in the long bones

Question 12

osiffication

Answer 12

process of bone formation

Question 13

osteoblasts

Answer 13

specialized bone cells that build new bone tissue

Question 14

osteoclasts

Answer 14

specialized bone cells that resorb bone tissue

Question 15

osteocytes

Answer 15

mature bone cells

Question 16

osteon

Answer 16

a Haversian system

Question 17

perforating (Volkmann’s) Canals

Answer 17

large canals that connect the haversian canals also known as perforating canals oriented across bones and perpendicular to Haversian Canals

Question 18

Periosteum

Answer 18

fibrous connective tissue membrane that surrounds and protects that shaft (diaphysis) of long bones

Question 19

remodeling

Answer 19

process through which adult bone can change in density, strength, and sometimes shape.

Question 20

trabecular bone

Answer 20

interior, spongy bone with a porous, honeycomb structure.