1. Discussion Questions
  3/26/15
Using your textbook, journal, handouts, or smart phone please complete the following:
1. Please describe the function and structures of the
Integumentary System.
2. How are the Integumentary System and the Immune System
related?
3. How are the Integlumentary System and Excretory System
4. Describe one other relationship between the Integumentary
System and another body system.

2. Videos
united streaming

3. Reminders
Review your discussion questions and ppt notes ~5 min each night for the daily quizzes.
Go to room 1135 Tues or Thurs for Science Peer Tutoring during PLC

4. 4

5. QUIZ Clear your desks of everything Do NOT write on the quiz please
QUIZ
Clear your desks of everything
Do NOT write on the quiz please
Use CAPITAL letters please
Keep your answers covered
If you need to make up a quiz due to an absence… come see me Tues or Thurs during PLC
Flip it over when you are finished and hang on to it.

6. Today’s Objective: OBJECTIVES: Learn the structures and functions of
the muscular and skeletal systems

7. Muscular System

8. General Characteristics
works with skeleton to produce movement
voluntary movement – deliberate moving of body parts
involuntary movement – circulate blood, move food through the digestive tract

9. Three Types of Muscle Tissue:
skeletal muscle – attached to skeleton, striated: appear striped, voluntary
smooth muscle – in walls of stomach, blood vessels and intestines, not striped, involuntary, causes food to move through digestive system
cardiac (cardio = heart) muscle – in the heart, striated, involuntary, may have two nuclei, causes heart to beat.

10. Muscle contraction – two types of fibers are
found in muscle cells. These fibers slide
across each other to contract each long,
cylindrical muscle cell
Myosin – thick fibers
Actin – thin fibers
Cross-bridges
Z line
Myosin
Actin
Sarcomere

11. Muscle Pairs Muscles have to work in pairs to move your bones.
When one muscle contracts the other must relax.

12. Muscle slide pictures

13. Skeletal Muscle

14. Smooth Muscle

15. Cardiac Muscle

16. Skeletal Tissue

17. Skeletal System

18. General Information: provides support for the body
protects internal organs
provides movement
stores minerals
site for red blood cell, white blood cell and platelet formation

19. Bone Structure:
Solid network of living cells & protein fibers surrounded by calcium salts
Periosteum – covering
Haversian canals – tubes that carry blood vessels & nerves
Osteocyte – mature bone cells
Bone marrow – soft tissue in middle of bones (yellow marrow is fat, red marrow makes blood cells)

20. Spongy bone
Haversian canal
Compact bone
Compact bone
Periosteum
Bone marrow
Spongy bone
Osteocyte
Artery
Periosteum
Vein

21. Cartilage – tough flexible connective tissue
found at ends of bones, nose & ear
skeleton of embryos
Ossification – cartilage is replaced by bone during development

22. Ligaments – hold bone to bones at joints
Tendons – connect muscles to bones
Osteoporosis – condition in which bones weaken and are easily broken

23. A B C D F E G H I K N M J O L P R Q S T U V W Q
Ball-and-Socket
Saddle
Pivot
Hinge

24. \ Activities for the Day New Groups Handouts
Work on journals for the next journal check \ 24