1. Human Systems

2. Create Flow Chart Graphic Organizer

3. Levels of Organization
Nerve
Cell
Tissue
organ
System

4. Copy this diagram in your notebooks.
Heading
Notes
Meanings
Questions
Main ideas
Vocabulary
Copy this diagram in your notebooks.
This is called
Cornell Notes
Summary

5. Basic unit of structure and function Carries on life functions
Cell
Basic unit of structure and function
Carries on life functions
Organisms are one cell or many cells---Human has over a trillion cells
Smallest unit of
organization
Are all cells the same?
Unicellular or multicellular
The cell is the basic unit of structure and function in all living things that keeps the organism
Living.

6. Tissue
Group of similar cells doing the same job
Four types of tissue
a. Connective
1. provides support
2. connects all parts of body to each other
b. Muscle
1. provides movement
2. contract
c. Nerve
1. directs and controls body
2. carries impulses between brain and rest of body
d. Epithelial
1. covers surfaces of body—inside and out
2. Protects
3. Releases chemicals
Examples:
Connective---blood, bone, fat,
tendons, cartilage
Muscle---allows body to move,
moves blood and food
through body
Nerve- - - brain, spinal cord,
senses—hear, smell, think
Epithelial—skin,
line digestive system
You write a summary of this slide
Possible Example:
Tissue is the second level of organization. There are four basic types of tissues that do different jobs, connective, muscle, nerve and epithelial.

7. Organ
3rd level of organization
Example:
Heart—pumps blood, Made up of nerve tissue, muscle tissue, connective tissue and epithelial tissue
Stomach-churns and mixes food and digestive juices. Made up of smooth muscle tissue, nerve tissue, epithelial tissue
organ
Composed of different tissues working together to perform a specific function.
tissue
cell
Write a summary
Possible summary:
The third level of organization is the organ which is composed of different kinds of tissues working together to perform a function.

8. Organ System
Fourth level of organization
Examples:
Circulatory system—heart-artery-vein-capillaries
Digestive system-contains organs like esophagus-stomach-small intestine-large intestine
Skeletal System-206 different organs (bones) like the femur-patella-cranium-ribs-phalanges
Muscular System- over 600 different organs (muscles) like the triceps-biceps-pectorals
Nervous System-brain-peripheral nerves-spinal cord
Group of different organs working together to accomplish a specific task
Write your summary
Possible summary:
The fourth level of organization is the organ system. The organ system consists of different organs working together to perform a task. For example, the digestive system is made up of organs like the stomach, small intestine, pancreas etc. that break down food for absorption by the body.

9. Organ System Skeletal System

10. Background
Bones-made from elements phosphorus and calcium 206 bones in average human. Newborns have more (some have not fused yet!) Smallest bones are in the ear—Hammer, anvil, and stirrup Largest bone is the femur (thigh bone)

11. Skeletal System’s Functions
5 major functions
Shape and support
unique structure for each organism-skeleton provides the framework while supporting the body and the organs within

12. Skeletal System’s Functions
Allows movement
Muscles are attached to the skeleton. The muscles contract, pulling on the bones. The attachment to the bone allows the movement or contraction of the muscles. Just like a rubber band cannot contract unless it is attached at both ends.

13. Skeletal System’s Functions
Protects
Bones have a compact and a spongy layer.
Compact and spongy layers give the bones their strength and allow them to absorb forces
Bones surround the chest cavity (rib cage), cranium surrounds the soft tissues of the brain

14. Skeletal System’s Functions
Produces blood cells
Certain bones, like the femur, have central layer called red marrow
Red marrow produces blood cells for the body

15. Skeletal System’s Functions
Stores materials until body needs them
Certain bones have central layer called yellow marrow
Yellow marrow stores fats for energy reserves
Bones will also release phosphorus and calcium in small amounts when the body needs those minerals

16. Layers of Bone Four layers:
Periosteum—outermost layer, blood vessels enter the bone through this layer

17. Layers of Bone
Compact layer— 2nd layer dense material, has canals in it that carry blood vessels and nerve cells

18. Layers of Bone
Spongy layer-3rd layer, at ends of bones, has spaces within it. Makes the bones lighter while maintaining the strength

19. Layers of Bone
Marrow—innermost layer, red or yellow, soft material, connective tissue

20. Name the bones 1. cranium 2. mandible 3. clavicle 4. sternum
5. humerus 6. ribs
7. vertebra 8. pelvis
9. radius 10. ulna
11. carpals
12. metacarpals
13.(20) phalanges
14. femur 15. patella
16. tibia 17. fibula
18. tarsals 19. metatarsals

21. Skeleton
Across
2.upper arm 5.Backbone 7.Palm 9.Ribs 11. Collarbone 13. Skull 16. hips 17. shoulder blade
Down
1. breastbone 3. Arch 4. Thigh 6. Ankle 8. Lower leg large bone
9. lower arm near thumb 10. Lower arm near little finger 12. Kneecap 13. Wrist
14. lower leg thin bone 15. toes