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 Approximately 40% of your body weight  Approximately 650 muscles  Muscles only pull (they can’t push)  You have over 30 facial muscles  Eye muscles.

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Presentation on theme: " Approximately 40% of your body weight  Approximately 650 muscles  Muscles only pull (they can’t push)  You have over 30 facial muscles  Eye muscles."— Presentation transcript:

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2  Approximately 40% of your body weight  Approximately 650 muscles  Muscles only pull (they can’t push)  You have over 30 facial muscles  Eye muscles move more than 100,000 times a day

3 1. Skeletal 2. Cardiac 3. Smooth

4  Definition - organs that are composed mainly of skeletal muscle tissue, but they also contain connective tissues, nerves, and blood vessels.  Each cell is a single muscle fiber.  Muscle fibers form bundles called fascicles.  Directly or indirectly attached to the bones of the skeleton

5 Muscle plays six important roles in the body: 1. Produce skeletal movement 2. Maintains posture and body position 3. Support soft tissues (abdominal wall & pelvic cavity) 4. Guard entrances and exits (digestive and urinary tracts) 5. Maintain body temperature (energy is converted to heat) 6. Store nutrient reserves (proteins are broken down & amino acids are used)

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7  At the end of the muscle, the collagen fibers come together to form a tendon.  Tendons attach muscles to bone  Origin – where the fixed end of the muscle attaches to the bone (cartilage or connective tissue)  Insertion – where the movable end of the muscle attaches to another structure

8  Gastrocnemius – calf muscle that extends from the distal portion of the femur to the calcaneus  When it contracts it pulls the calcaneus toward the knee  Origin – femur  Insertion - calcaneus

9 Head and Neck Muscles Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 6.14

10 Trunk Muscles Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 6.15

11 Deep Trunk and Arm Muscles Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 6.16

12 Muscles of the Pelvis, Hip, and Thigh Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 6.18c

13 Muscles of the Lower Leg Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 6.19

14 Superficial Muscles: Anterior Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 6.20

15 Superficial Muscles: Posterior Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 6.21

16 Types of Ordinary Body Movements Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Flexion – bending at the joint  Extension - straightening at the joint  Hyperextension Hyperextension  Rotation – rotating on axis  Abduction – moving away from the midline  Adduction – moving toward the body  Circumduction – circular movement

17 Body Movements Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings Figure 6.13

18  Dorsifelxion  Plantar flexion Special Movements

19 Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings  Inversion  Eversion

20  Lactic Acid- Toxins that build up within our muscles due to:  Over working the muscles  Damaging the muscles  Not receiving enough oxygen Two kinds of stretching: 1. Static 2. Dynamic

21 What is a strain? Strains are injuries that involve the stretching or tearing of a (muscle and tendon) structure What is a sprain? A sprain is an injury involving the stretching or tearing of a ligament (tissue that connects bone to bone) Strain vs. Sprain

22 Ankle Sprains

23 Examples of Strains

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25 Grade I (mild) sprain or strain involves some stretching or minor tearing of a ligament or muscle. Grade II (moderate) sprain or strain is a ligament or muscle that is partially torn but still intact. Grade III (severe) sprain or strain means that the ligament or muscle is completely torn, resulting in joint instability.

26  R – rest  I - immobilize  Braces and Ice (20 min.)  C - compression  E - elevation

27  Protein builds AMINO ACIDS to repair and build muscles.  Muscle Atrophy-  Muscle Hypertrophy-

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29  Feeling or hearing a pop in the knee at the time of injury.  Pain on the outside and back of the knee.  The knee swelling within the first few hours of the injury.  Limited knee movement because of pain, swelling or both.  The knee feeling unstable, buckling or giving out

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31  A muscle cramp is an involuntarily and forcibly contracted muscle that does not relax.  Almost everyone experiences a muscle cramp at some time in their life.  Numerous medicines can cause muscle cramps.  Most muscle cramps can be stopped if the muscle can be stretched.  Prevent by drinking plenty of water before, during and after exercising!!

32  is a painful condition that occurs when pressure within the muscles builds to dangerous levels.  This pressure can decrease blood flow, which prevents nourishment and oxygen from reaching nerve and muscle cells.  Symptoms:  Aching, burning or cramping  Tightness  Numbness or tingling  Weakness

33  Why do we need to rehab an injury?  Can muscle soreness be good?

34 Muscular Dystrophy Definition - a group of genetic, degenerative diseases primarily affecting voluntary muscles. Cause - An absence of dystrophin, a protein that helps keep muscle cells intact. Information obtained from:

35 Onset - Early childhood - about 2 to 6 years. Symptoms - Generalized weakness first affecting the muscles of the hips, pelvic area, thighs and shoulders. Calves are often enlarged. Progression - DMD eventually affects all voluntary muscles, and the heart and breathing muscles. Inheritance - X-linked recessive. DMD primarily affects boys, who inherit the disease through their mothers. Women can be carriers of DMD but usually exhibit no symptoms.  Hayy4I


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