1. The Skeletal System

2. The adult human body has 206 bones!
Function
The adult human body has 206 bones!
The main purpose of the Skeletal system is to:
support and protect the body
allow the body to move

3. There are 26 bones in the human foot!
Major Parts
Connective tissue
Bones
Cartilage
When you were born, you didn’t have “true” bone. Your bones were soft and rubbery, like the end of your nose or the top of you ear – cartilage
There are 26 bones in the human foot!

4. Bones
The inside of bone (bone marrow) maintain homeostasis by storing minerals and making blood cells

5. The inside of bone has two kinds of bone tissue: compact and spongy
Rigid and dense
Tiny canals contain small blood vessels
Tiny open spaces
Provides most of the strength and support of a bone
When you were born, you didn’t have “true” bone. Your bones were soft and rubbery, like the end of your nose or the top of you ear – cartilage

6. The human hand, including the wrist, contains 54 bones!
Joints
Joint: where two or more bones meet
Joints are held together by ligaments (strong bands of connective tissue)
The human hand, including the wrist, contains 54 bones!

7. Skeletal System Problems
Bone fractures. Fissures, breaks, etc.
Ligament injuries

9. Skeletal System Problems
Arthritis
Osteoporosis
Arthritis – inflamed joints causing pain and stiffness
Osteoporosis – disease causing bones to be brittle

11. Bone Lab – Pre lab Before Describe the physical appearance of the bone
Sketch your observations

12. Bone Lab – Post lab Describe the physical appearance of the bone
After
Describe the physical appearance of the bone
Sketch your observations