chapter 5

Question 1

how does the skeletal system help with movement

Answer 1

attaches muscles from levers for movement

Question 2

which parts of the skeletal system aid in protection

Answer 2

skull, vertebrae, ribs, pelvis

Question 3

what does the skeletal system do to support the body

Answer 3

provides framework to support the organs

Question 4

what is the process of blood cell formation

Answer 4

hematopoiesis

Question 5

what do the bones in the skeletal system store

Answer 5

calcium and phosphate

Question 6

what forms cartilage

Answer 6

chondrocytes

Question 7

what surrounds cartilage

Answer 7

perichondrium

Question 8

fibrocartilage

Answer 8

weight bearing and resist compression (in-between vertebrae, connects both halves of pelvis)

Question 9

elastic cartilage

Answer 9

flexible and elastic (cartilage found in ear)

Question 10

hyaline cartilage

Answer 10

firm structure, resembles frosted glass (coastal cartilage)

Question 11

axial skeleton

Answer 11

skull, vertebral collum, ribs, sternum

Question 12

appendicular skeleton

Answer 12

upper and lower limbs, scapula, clavicle, pelvic bones

Question 13

spongy bone

Answer 13

light and porous, typically located at the ends of long bones or the middle of flat bones, trabeculae form structural pillars

Question 14

compact bone

Answer 14

hard, strong bones, forms outer shell, comprises 80% of bone structure in the body, osteons form structural pillars

Question 15

outside osteon (layers of lamellae)

Answer 15

circumferential lamellae, interstitial lamellae

Question 16

lamellae of osteon

Answer 16

concentric lamellae

Question 17

central (haversian) canal

Answer 17

runs through the center of the lamellae, contains blood vessels and nerve fibers

Question 18

concentric lamellae

Answer 18

layers encircle central canal, adjacent collagen fibers run in opposite directions

Question 19

perforating canals (volkmanns canals)

Answer 19

connect blood supplies of periosteum to central canal and medullary cavity

Question 20

lacunae

Answer 20

small cavities that lie in between lamellae, contain osteocytes

Question 21

canaliculi

Answer 21

small canals that connect the lacunae and central osteon

Question 22

ex of long bone

Answer 22

humerus

Question 23

short bone

Answer 23

carpals

Question 24

flat bone

Answer 24

scapula

Question 25

irregular bone

Answer 25

vertebrae

Question 26

sesamoid bone

Answer 26

patella

Question 27

make up of boney matrix

Answer 27

hard and dense substance comprised of mineral deposits and collagen

Question 28

osteocytes

Answer 28

mature bone cell, responsible for monitoring boney matrix

Question 29

osteoblasts

Answer 29

form bone matrix