Presentation on theme: "THE SKELETAL SYSTEM There are 206 bones Functions of the skeleton: 1.Framework – gives structure and support 2. Protects the internal organs What does."— Presentation transcript:
Vertebrae ( Back Bone / Spine) -The bones in the backbone are called vertebrae. -It consists of 33 bones divided into 3 sections. -Vertebrae pictures from: http://www.hughston.com/hha/spine.jpgVertebrae pictures from: http://www.hughston.com/hha/spine.jpg
Vertebrae Sections: 1. Cervical Region (neck) 2. Thoracic Region
Vertebrae Section (continued) 3. Lumbar region (lower back)
Femur The femur is the upper leg bone. Helps form the hip joint by articulating (fit together) with the pelvis. The hip joint is the largest ball and socket joint in the body. http://www.physioweb.org/IMAGES/femur.jpg
Tibia and Fibula The tibia, in the outer lower leg, supports most of the body's weight. The fibula is the smaller bone that provides support for the ankle and space for muscle attachments. Patella is the knee cap. http://www.mnsu.edu/emuseum/biology/humananato my/skeletal/leg/leg.jpg http://www.mnsu.edu/emuseum/biology/humananato my/skeletal/leg/leg.jpg
Types of Bones: 4. Short Bones -Wrist and hand : -Carpals -Metacarpals -Phalanges -Ankle and foot: -Tarsals -Metatarsals -Phalanges
Wrist and Hand Bones http://www.eorthopod.com/images/ContentImages/hand/hand_anatomy/hand_anatomy_bones01.jpg http://www.eorthopod.com/images/ContentImages/hand/hand_anatomy/hand_anatomy_bones01.jpg
Foot and Ankle Bones:http://content.answers.com/main/content/img/oxford/Oxford_Sports/0199210896.tarsus.1.jpghttp://content.answers.com/main/content/img/oxford/Oxford_Sports/0199210896.tarsus.1.jpg
What keeps the skeleton together? Ligaments – bone to bone http://www.clarian.org/ADAM/d oc/graphics/images/en/12686.jpg http://www.clarian.org/ADAM/d oc/graphics/images/en/12686.jpg
What else keeps the skeleton together? Tendons – Connects bone to muscle
What is tendonitis? - itis means inflammation or infection of Your answer? Inflammation of the tendons !
What are JOINTS ? The point where 2 bones meet is a joint. Joints are necessary for motion to occur. What provides lubrication of a joint? – Joints are filled with synovial fluid.
4 TYPES OF JOINTS 1. BALL AND SOCKET- rounded end of one bone fits snugly into the other bones socket. Examples: a. Shoulder b. Hip
Types of Joints 2.Hinge – movement of joint is in one direction (like a door) Examples: a. Elbow b. Knee c. Knuckles d. Jaw http://www.wi-rheum.org/images/KneeJoint.jpg Screen clipping taken: 7/31/2009
Types of Joints: 3.Gliding - bones slipping over other bones with a free flowing movement. Examples: a.Ankle b. Wrists http://www.wobblenaught.com/images/ankle.jpg Screen clipping taken: 7/31/2009, 12:15 PM
Types of Joints 4.Pivot - bone rests on top of another bone allowing full movement http://www.jeron.je/anglia/learn/sec/science/humans3/pivot
5. KYPHOSIS - OSIS means condition in which. Condition in which there is an abnormal posterior curve of the spine (hunchback).
6. LORDOSIS The condition in which there is an excessive concave (inward) curve of the spine. (Swayback).
7. Osteomyelitis Infection or inflammation of the bone, usually caused by a bloodborne pathogen.
8. Osteoporosis Condition in which bones become full of tiny holes, causing them to break easily. Common in women after menopause. OSTEO- means bone -OSIS means condition PORO- means holes, porous like a sponge
Take care of your bones! http://health.malaxi.com/uploaded_images/osteoporosis-771021.jpg http://health.malaxi.com/uploaded_images/osteoporosis-771021.jpg
9. RICKETS Condition in which the bones are soft because they do not calcify. Often caused by a lack of calcium and phosphorus in the diet
10. SCOLIOSIS Condition in which there is a lateral (to the side) curve of the spine. http://drosmon.com/images/scoliosis2.gif
11. SPRAIN – Severe stretching or tearing of a ligament
Muscles Definition - body tissue composed of cells and fibers which produce movement of the body part or organ.
Types of Muscles: 1. Striated / Skeletal - – Voluntary; moves with conscious thought – Muscles form a bridge over joints – Cell structure: striped looking; bundles of stringy fibers of different lengths – As your muscles flex (contract) and relax (extend) your bone moves
Striated Muscle – forms a bridge over joints for movement
Types of Muscles: 2. Visceral / Smooth – - Involuntary; Moves without conscious thought - Muscles form the walls of internal organs of the body - Digestive organs - Diaphragm - Blood vessels - Cellular structure: Spindle shaped (tapers at the ends) with a central nucleus
Disorders of the Muscular System Fibromyalgia – Pain of the connective tissue and muscles Fibrositis – Inflammation of the connective tissue Muscle Strain – Trauma to the muscle, usually caused by a violent contraction.
Muscular Dystrophy (congenital and chronic) deterioration of muscle tissue that progresses over time. Myalgia – Muscle pain. Torn muscle – tear of a muscle tissue; usually caused by extreme trauma to the muscle.