1. Organization within the Human Body

2. Cells Smallest unit of structure & function Have specialized functions
Examples
Nerve cells (neurons)
Blood cells
Bone cells

3. Tissues
Group of similar cells working together to carry out the same function
4 basic types of tissue in the human body
Nerve tissue
Muscle tissue
Epithelial tissue
Connective tissue

5. Nerve Tissue
Carry impulses back & forth to the brain from the body

6. Muscle Tissue
Contracts and shortens making body parts move
“movement”

7. Epithelial Tissue Covers the surface of the body inside & outside
As lining or covering of internal organs
Outside
As layer of skin

8. Connective Tissue Connects all parts of the body and provides support
Examples
Tendons
Ligaments
Cartilage

9. Tendon

10. Ligament

11. Cartilage

12. Organs
Two or more types of similar tissues working together to perform the same function
Example
Heart made of muscle & connective tissues which work together (function) to pump blood throughout the body.

13. Systems
Two or more organs working together to perform a specific function.
11 different organ systems in the body
Circulatory
Digestive
Endocrine
Excretory (Urinary)
Immune
Integumentary (Skin)
Muscular
Nervous
Reproductive
Respiratory
Skelatal

14. CELLS
TISSUES
ORGANS
SYSTEMS