Skeletal System

Question 1

Funcitons of the Skeletal System

Answer 1

1. provides support
2. protects organs
3. movement
4. storage of minerals
5. produces blood cells

Question 2

How many bones when you are born

Answer 2

300

Question 3

How many bones do you have now

Answer 3

206

Question 4

Skeleton Tissue Part

Answer 4

1. Cartilage
2. Bones
   - Material (45%)
   - Water (25%)
   - Living Cells (30%)

Question 5

Cartilage

Answer 5

flexable, protection, movement, and cussion for joints

Question 6

Bones

Answer 6

1. Minerals (25%)
2. Water (25%)
3. Living Cells (30%)
   - periosteum
   - bone marrow

Question 7

Periosteum

Answer 7

(Peri-outside, oste-bone) layer of living tissue that surrounds the bone.

1. Osteocytes- bone cells (gen. maintenence)
2. Osteoblasts- build bones (store minerals)
3. Osteoclasts- break bone down

Question 8

Bone Marrow

Answer 8

• red bone marrow- makes blood cells (red and white)

- white bone marrow- makes fat storage

Question 9

Types of bones

Answer 9

• Long bones (twice as long as they are wide)
• Short bones
• Flat bones
• Irregular bones (vertabrates)

Question 10

Movement

Answer 10

• Joints
• Muscles
• Connective tissue

Question 11

Joints

Answer 11

1. Hindge
2. Ball and Socket
3. Glide
4. Floating (knee, hyoid)
5. Fixed joint (collor bone)
6. Special comb. joint (elbow, hindge and ball & socket)

Question 12

Muscles

Answer 12

tendons (bones to muscle)

Question 13

Connective Tissue

Answer 13

ligaments (bone to bone)