1. A Volunteer…

2. Name the three functions of the skin

3. Name the three functions of the skin
Protection

4. Name the three functions of the skin
Protection
Receptors perceive the environment

5. Name the three functions of the skin
Protection
Receptors perceive the environment
Temperature Regulation

6. Integumentary System
Explain the function

7. Integumentary System
Skin is a multilayered organ that covers and protects the body

8. The Structure of the Skin
The epidermis

9. The Structure of the Skin
The epidermis
The dermis

10. The Structure of the Skin
The epidermis
The dermis
The subcutaneous

11. Epidermis Epithelial cells 10-30 cells thick Outer layer is Keratin
Waterproof
Protects

12. Dermis Second layer 15-40x thicker Connective tissues (don’t tear)
Contains: nerve cells, muscle fibers, sweat glands, oil glands and follicles

13. Subcutaneous Third layer Connective tissue Stores fat
Helps body retain heat

14. The Skeletal System
Chapter 32.2
The function of the skeletal system

15. The Skeleton System
Provides a framework
Protects internal organs

16. The Skeleton
206 bones in the human body

17. Axial Skeleton
Skull
Vertebral column
Ribs
Sternum

18. Appendicular Skeleton
Shoulders
Arms
Hands
Hips
Legs
Feet

20. Bones Connective tissue
Classified by terms: long, short, flat, irregular

21. Bones
Compact bone
Dense and strong
Strength and protection

22. Bones
Spongy bone
Less dense
Contains cavities for marrow

23. Marrow Red Red and white blood cells and platelets are produced Yellow
Store fat

24. Repair of Bone
Fractures common
Compound fracture
Stress fracture

25. Repair of Bone Endorphins Inflamed or swollen Blood clot in 8 hours
Callus forms

26. Repair of Bone Endorphins Inflamed or swollen Blood clot in 8 hours
Callus forms
Remodeling
Age
Nutrition
Location
Severity

27. Joints Two or more bones meet Ball-and-socket Pivot Hinge Gliding
Sutures

28. Name the white material at the end of a bone

29. The Muscular System
Three types of muscles
Smooth
Cardiac
Striated

30. Smooth muscle Involuntary Can’t be controlled
Esophagus, stomach and intestines

31. Cardiac Muscle
Heart muscle
Involuntary
Network or web

32. Striated Muscle Skeleton muscles Voluntary
Tendons – tough bands of connective tissue
Connects to bone

33. ATP Produced in mitochondria contraction of muscles
relaxation of muscles

34. Fast-twitch muscles Rapid short movements Fatigue easily
Short burst of energy