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Skeletal & Muscular Systems

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Presentation on theme: "Skeletal & Muscular Systems"— Presentation transcript:

1 Skeletal & Muscular Systems
Form and Movement

2 Engage What is Osteoporosis?????
Complete the osteoporosis questionnaire.

3 Engage Deboned What would happen if humans did not have bones? Your body would be limp like a rag doll. Could you stand up? Could you walk? Without bones in your body, you would be like the blob. As a class we will observe two bones that were soaked in two different solutions.

4 Deboned Similarities Differences

5 Explore The Calcium Test
Students will test various types of materials to determine the presence or absence of calcium.

6 Explore Computer Lab
You will visit the above website and answer questions while navigating through the narrated skeletal system section

7 Explain What are the 5 Main Functions of the Skeleton
provide structure and support for body protect internal organs make blood cells store minerals attachment for muscles for movement

8 Skeletal Systems Exoskeleton Endoskeleton

9 Exoskeleton external skeleton Arthropods and Mollusks
Arthropod’s skeleton is made of a material called chitin and must be shed to permit growth. Mollusk’s skeleton is made by the mantle from calcium carbonate.

10 Endoskeleton Internal skeleton Grows with the organism
Made of cartilage or a combination of cartilage and bone. Ossification – replacing cartilage with bone around 7 months before birth Osteoclasts – break down bone Osteoblasts – form bone tissue Contains 2 parts : axial and appendicular areas.

11 Appendicular Skeleton
Skull Sternum Ribs Vertebral column Metatarsals Metacarpals Phalanges Clavicle Scapula Humerus Radius Pelvis Ulna Carpals Femur Patella Fibula Tibia Tarsals Axial Skeleton Appendicular Skeleton

12 Structure of Bone Spongy bone Compact bone Haversian canal Periosteum
Bone marrow Haversian canal Osteocyte Artery Vein

13 Structure of Bones Solid network Living cells Protein fibers
Deposits of Calcium Salts

14 Part of Bone 1. Marrow 2. Periosteum - Outer connective tissue – tough
Yellow – fat cells Red – RBC, WBC, Platelets 2. Periosteum - Outer connective tissue – tough 3. Compact bone Haversian Canals Tubes carrying blood vessels and nerves 4. Spongy bone Less dense; inside compact bone; ends of long bones and middle of short, flat

15 Structure of Bone Spongy bone Compact bone Haversian canal Periosteum
Bone marrow Haversian canal Osteocyte Artery Vein

16 Joints One bone attaches to another Three types Immovable (Skull)
Slightly Movable Freely Moveable

17 Freely Moveable Joints
Ball-and-Socket Joint Hinge Joint Pivot Joint Saddle Joint Clavicle Ball-and-socket joint Scapula Humerus Femur Patella Hinge joint Tibia Fibula Radius Pivot joint Ulna Metacarpals Carpals Saddle joint

18 Joint Structure Muscle Tendon Femur Patella Bursa Ligament
Synovial fluid Cartilage Fat Fibula Tibia

19 Joint Structure Tendon – Muscle to Bone Ligament – Bone to Bone
Synovial Fluid – lubricating film Bursa – small sac of synovial fluid Bursitis – inflammation of a bursa

20 Bone Diseases Osteoporosis Leukemia Vitamin D deficiency

21 Elaboration Best Bones Interest Project Questionnaire

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