The skeletal system

Question 1

Why are the 5 functions of bone?

Answer 1

Support/ structure 
Protection
Movement/ leverage 
Storage
Blood cell production

Question 2

Ossification

Answer 2

Mineralization of hardening of the bone

Question 3

Osteoblasts

Answer 3

Trap themselves in a lacunae and become a osteocyte

Question 4

Osteocytes

Answer 4

Communicate with each other through canaliculi

Question 5

Cancellous

Answer 5

Spongy inner layer of the bone. Reduce the weight

Question 6

Compact

Answer 6

Heavy dense outer layer of all bones. Composed of Haversian canals

Question 7

Volkmanns canals

Answer 7

Tiny channels in the bone matrix that vessels pass through. Keeping the bone alive

Question 8

Nutrient foramen

Answer 8

Where large vessels enter the bone. Carry blood into and out of bone marrow

Question 9

What are the 3 types of bone cells?

Answer 9

Osteoblasts
Osteocytes
Osteoclasts

Question 10

Osteoclasts

Answer 10

Eat bone away when it’s not needed

Question 11

Periosteum

Answer 11

Fibrous membrane that covers the outside of bone

Question 12

Endosteum

Answer 12

Fibrous membrane that lines the hollow interior surface of bones

Question 13

Diaphysis

Answer 13

The shaft of long bones

Question 14

Epiphysis

Answer 14

The ends of long bones

Question 15

Endochondral

Answer 15

Grows bone to replace cartilage

Question 16

Primary growth center

Answer 16

Bone grows in the diaphysis

Question 17

Secondary growth centers

Answer 17

Bone develops in epiphysis

Question 18

Long bones

Answer 18

Longer than they are wide.

Question 19

Short bones

Answer 19

Shaped like cubes

Question 20

Flat bones

Answer 20

Thin and flat bones. Consist two layers of compact bone separated by cancellous bone

Question 21

Irregular bone

Answer 21

Miscellaneous bones that do not fit into another category

Question 22

What are the two types of bone marrow?

Answer 22

Red bone marrow

Yellow bone marrow

Question 23

Red bone marrow

Answer 23

Hematopoiesis- forming new blood cells

Question 24

Yellow bone marrow

Answer 24

Primarily adipose connective tissue.