Presentation on theme: "Muscular System… The body has over 600 muscles. They are soft tissues. Tiny jolts of electricity called electrical impulses travel through the nerves."— Presentation transcript:
Muscular System… The body has over 600 muscles. They are soft tissues. Tiny jolts of electricity called electrical impulses travel through the nerves to the muscles.
Muscular System… This jolt of electricity allows the muscle to contract. When the jolt is not there the muscles relax. Muscles to know: Triceps Biceps Quadriceps Hamstrings Abdominals Deltoid Chest Muscles Calf Muscles Groin Muscles Face Muscles Gluteus Muscles Back Muscles
Types of Muscle Skeletal – attaches to the skeleton to help you move. Smooth – is found in organs and in skeletal muscle. Cardiac- only found in the heart.
Skeletal System… Approx. 206 bones in the human body. Main job is to support and protect. Bones have a rich supply of blood and nerves. If broken on a growth plate, may affect future growth. The gradual weakness of the skeletal system where the bones turn brittle is called osteoporosis.
Skeletal System The inner tissue of the bone is called the marrow. Things made, stored or found in the marrow: red blood cells blood vessels nerves Bones to know: Skull Mandible Sternum Scapula Ribs Spine Pelvis Humerus, Ulna, Radius Carpal, Metacarpals Phalanges Patella Femur,Tibia, Fibula Tarsals, Metatarsals
Types of Joints…Where bones and muscles end or begin Ball and Socket Tri-Axial Hinge Gliding All allow the body to move. Pivot Saddle Condyloid
Things that help the Joints… Ligaments – connects bone to bone Tendons – connects muscle to bone Cartilage - cushioning
Types of Injuries… Fractures A complete break, a chip, or a crack in the bone Dislocations The movement of a bone at a joint away from it’s normal position Sprains Tearing of ligaments at a joint. They swell but usually heal. Strains Stretching or tearing of muscles or tendons
Signals of Serious Muscle, Bone or Joint Injuries… Significant deformity Bruising and swelling Inability to us the affected part normally Bone fragments sticking out of wound Person feels bones grating; felt or heard a snap or pop at the time of injury Injured area is cold and numb Cause of the injury suggests that the injury may be severe.
How can you tell it’s that bad? Often you don’t know. X - Ray_ Computer aided Tomography or CAT Scan Magnetic Resonance Imaging or MRI R - Rest I - Immobilize C - Cold E - Elevate
If a splint is needed… Anatomic – the person’s body is the splint Soft – Materials such as towels, pillows, blanket or a sling. Rigid – Boards or folded magazines are used. The Ground
Head, Neck, and Back Injuries Signals Neck or Back Pain Tingling or weakness in the extremities Not alert_ Appears to be intoxicated. What to do… Hold head with both hands to keep from moving. Do not remove helmet If unconscious, keep airway open with the jaw thrust.