SKELETAL SYSTEM

Question 1

What do the osteoblasts do

Answer 1

Form bone

Question 2

What are osteogenic cells

Answer 2

Multi potent stem calls and can differentiate

Question 3

What do osteoclasts do

Answer 3

Resorbs bone

Question 4

What do osteocytes do

Answer 4

Maintains the bone tissue

Question 5

What are the 5 types of bone

Answer 5

Long, short, flat, sesamoid and irregular

Question 6

What is on the end of the long bone to reduce friction

Answer 6

Articular cartilage

Question 7

What is ossification

Answer 7

The process of forming bones

Question 8

What are 3 factors that reduce ossification

Answer 8

Genetics, nutrition and hormones

Question 9

What does vitamin a do

Answer 9

Stimulates osteoblasts

Question 10

What is vitamin c needed for

Answer 10

Synthesis of collagen

Question 11

What does vitamin d do

Answer 11

Increases absorption of calcium

Question 12

Why is vitamin k and b12 needed

Answer 12

Synthesis of bone proteins

Question 13

What does insulin do

Answer 13

Stimulates osteoblasts

Question 14

What does growth hormone do

Answer 14

Stimulate the production of IGF

Question 15

What does thyroid hormone do

Answer 15

Stimulate osteoblasts

Question 16

What does estrogen and androgens. Do

Answer 16

Induce death of osteoclasts and stimulates osteoblasts

Question 17

What are the two types of embryonic ossification

Answer 17

Intramembranous and endochondrial

Question 18

Where does intramembranous origninate and what kind of bones does it make

Answer 18

Mesenchyme and flat bones

Question 19

Where does endochondrial originate and what kind of bones does it form

Answer 19

Originates from a cartilage model and makes all bones except flat

Question 20

Where is the compact and spongy bone for flat bones

Answer 20

Compact bone outside and spongy inside

Question 21

Where is spongy bone and compact in the diaphysis of the long bone

Answer 21

Compact outside, spongy middle and medullary cavity in the middle

Question 22

Where does bone growth happen before end of puberty

Answer 22

In the epiphyseal plate

Question 23

What is an open bone fracture

Answer 23

Clean break and bone protrudes through skin

Question 24

What is a closed fracture

Answer 24

Clean break and bone doesn’t protrude the skin

Question 25

What is a commuted fracture

Answer 25

Bone is crushed or splintered and fragments lie between

Question 26

What is a green stick fracture

Answer 26

Only one side of the bone is broken and the other side is bent

Question 27

What does the axial skeleton contain

Answer 27

Vital organs

Question 28

What is the appenducalr skeleton used for

Answer 28

Locomotion

Question 29

What does the pectoral girdle contain

Answer 29

Clavicle and scapula

Question 30

What does the pelvic girdle contain

Answer 30

Ilium, ischium and pubis