1. Life Sustaining Processes
The Human Body
Life Sustaining Processes

2. Let’s Take A Look …
Inside the Human Body
Start at 2:50min.

3. Overview … Life Sustaining Processes: Support & Movement Energy Flow
Regulation
Defense
Waste Management
Gas Exchange
Responds
Respiratory System
Circulatory System
Nervous System
Skeletal System
Muscular System
Integumentary System
Exocrine System
Endocrine System
Digestive System
Lymphatic System
Urinary System

4. This weeks topics Homeostasis Comparative Anatomy
Levels of Organization

5. Comparative Anatomy
Your body is just like a machine.. Only BETTER..!!
Think about your body:
How is the human body similar to non-living objects… ??

6. Homeostasis Staying healthy keeps our body in balance!!
Regulation of life sustaining conditions is called Homeostasis

7. Internal Life Sustaining conditions:
Temperature

8. Internal Life Sustaining conditions:
Blood Pressure pH
Blood Sugar

9. Levels of Organization
Cells
Basic unit of life
Tissues
Made of different cells working together
Organs
Made of different tissues working together
Organ Systems
Made of different organs working together
Organisms

10. BIG IDEA: Working together to achieve homeostasis ….
Topic 2:
Support & Movement
Skeletal System
Muscular System
Nervous System

11. Skeletal System
Function:
Gives the body:
Support
Form
Protection

12. Skeletal System
Structure:
Bones
Ligaments
Cartilage

13. Skeletal System Structure: Bones 206 bones Store Minerals
Make Blood Cells
Protect Organs
Attachment for muscles

14. Skeletal System
Structure:
2. Ligaments
Hold bones together

15. Skeletal System Structure: 3. Cartilage Protects the ends of bones
Forms Ears & Nose

16. So.. What are the 3 structures of the Skeletal System?
Bones
Ligaments
Cartilage

17. We have 206 bones…
We will learn 22 bones …

18. Muscular System Function: Attaches to bones (movement)
Allows movement inside the body (blood, food, urine)
Generate body heat

19. Muscular System Structure: Skeletal Muscles Smooth Muscle
600 muscles attach to bones & move bones at joints
Smooth Muscle
Make tubed organs like intestines, blood vessels & bladder
Cardiac Muscle
Make the heart

20. There are over 600 skeletal muscles …
We will learn 14 skeletal muscles …

21. Nervous System Function: Structures: Sends impulse to muscles & glands
Brain
Spinal cord
Nerve cells
Sense organs (Eyes, Nose, Tongue, Skin)

22. How to the 3 Systems Work together?
Nerves send an impulse to the Muscles
Muscles contract & pull on Bones
Bones then cause movement at joints
Nerves also send impulses to cardiac & all smooth muscles.
Those muscles contract and cause internal movement for urine, blood & food.
Skeletal System
Muscular System
Nervous System

23. Chicken Wing Dissection