Section 35-1 Chapter 36 – The Skeletal, Muscular and Integumentary Systems Go to Section: Section Outline Section 36-1 36–1 The Skeletal System A. The Skeleton B. Structure of Bones C. Development of Bones D. Types of Joints 1. Immovable Joints 2. Slightly Movable Joints 3. Freely Movable Joints E. Structure of Joints F. Skeletal System Disorders Go to Section: The Skeletal System Section 36-1 Skull Axial Appendicular Skeleton Clavicle Skeleton Sternum Scapula Ribs Humerus Vertebral Radius Pelvis column Ulna Carpals Metacarpals Phalanges Femur Patella Fibula Tibia Tarsals Metatarsals Phalanges Go to Section: Figure 36-3 The Structure of Bone Section 36-1 Spongy bone Compact bone Haversian canal Compact Periosteum bone Bone marrow Spongy bone Osteocyte Artery Periosteum Vein Go to Section: Figure 36-4 Freely Movable Joints and Their Movements Section 36-1 Ball-and-Socket Joint Pivot Joint Clavicle Humerus Ball-and- Radius socket joint Pivot Hinge Joint joint Saddle Joint Scapula Ulna Humerus Femur Fibula Patella Metacarpals Hinge Carpals Saddle joint joint Tibia Go to Section: Figure 36-5 Knee Joint Section 36-1 Muscle Tendon Femur Patella Bursa Ligament Synovial fluid Cartilage Fat Fibula Tibia Go to Section: Section Outline Section 36-2 36–2 The Muscular System A. Types of Muscle Tissue 1. Skeletal Muscles 2. Smooth Muscles 3. Cardiac Muscle B. Muscle Contraction C. Control of Muscle Contraction D. How Muscles and Bones Interact E. Exercise and Health Go to Section: Cycle Diagram Section 36-2 1 Myosin forms cross-bridge with actin 5 2 Myosin returns Cross-bridge to original changes shape shape 4 3 Cross-bridge Actin pulled releases actic Go to Section: Figure 36-7 Skeletal Muscle Structure Section 36-2 Go to Section: Figure 36-8 Muscle Contraction Section 36-2 Relaxed Muscle Z line Myosin Actin Z line Movement of Actin Filament Actin Cross- Sarcomore Binding bridge sites Contracted Muscle Myosin Cross-bridges Z line Go to Section: Figure 36-8 Muscle Contraction Section 36-2 Relaxed Muscle Z line Myosin Actin Z line Movement of Actin Filament Actin Cross- Sarcomore Binding bridge sites Contracted Muscle Myosin During muscle contraction, the knoblike head of a myosin filament attaches to a binding site on actin, forming Cross-bridges Z line a cross-bridge. Go to Section: Figure 36-8 Muscle Contraction Section 36-2 Relaxed Muscle Z line Myosin Actin Z line Movement of Actin Filament Actin Cross- Sarcomore Binding bridge sites Contracted Muscle Myosin During muscle Powered by ATP, contraction, the the myosin cross- knoblike head of a bridge changes myosin filament shape and pulls attaches to a binding the actin filament site on actin, forming toward the center Cross-bridges Z line a cross-bridge. of the sarcomere. Go to Section: Figure 36-8 Muscle Contraction Section 36-2 Relaxed Muscle Z line Myosin Actin Z line Movement of Actin Filament Actin Cross- Sarcomore Binding bridge sites Contracted Muscle Myosin During muscle Powered by ATP, The cross-bridge is contraction, the the myosin cross- broken, the myosin knoblike head of a bridge changes binds to another myosin filament shape and pulls site on the actin attaches to a binding the actin filament filament, and the site on actin, forming toward the center cycle begins again. Cross-bridges Z line a cross-bridge. of the sarcomere. Go to Section: Figure 36-11 Opposing Muscle Pairs Section 36-2 Movement Movement Biceps (relaxed) Biceps (contracted) Triceps (relaxed) Triceps (relaxed) Go to Section: Section Outline Section 36-3 36–3 The Integumentary System A. The Skin 1. Epidermis 2. Dermis 3. Skin Cancer B. Hair and Nails 1. Hair 2. Nails Go to Section: Concept Map Section 36-3 Skin functions is made as a up of the Regulator of Protector Barrier to Remover of body against UV Epidermis Dermis infection waste products temperature radiation which which is the is the Outer layer Inner layer Go to Section: Figure 36-13 The Structure of Skin Section 36-3 Go to Section: Videos Click a hyperlink to choose a video. Muscle Contraction, Part 1 Muscle Contraction, Part 2 Video Contents Video 1 Muscle Contraction, Part 1 Click the image to play the video segment. Video 1 Video 2 Muscle Contraction, Part 2 Click the image to play the video segment. Video 2 Go Online Links from the authors on making artificial skin Interactive test For links on bones and joints, go to www.SciLinks.org and enter the Web Code as follows: cbn-0361. For links on muscle contraction, go to www.SciLinks.org and enter the Web Code as follows: cbn-0362. Internet This slide is intentionally blank. End of Custom Shows .