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Quiz Show

Quiz Show. Question and Answer Samples and Techniques. 1. List the 3 types of muscle and tell where each would be found. Smooth- in body organs and lining of blood vessels Cardiac- in heart Skeletal- attached to bones. 2. What are the 3 major functions of the muscular system?.

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Quiz Show

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  1. Quiz Show Question and Answer Samples and Techniques

  2. 1. List the 3 types of muscle and tell where each would be found Smooth- in body organs and lining of blood vessels Cardiac- in heart Skeletal- attached to bones

  3. 2. What are the 3 major functions of the muscular system? Movement of the skeleton Maintenance of posture Generation of heat

  4. 3. What is a motor unit? A single neuron (nerve cell) and all the muscle fibers that it stimulates or controls

  5. 4. What is a neurotransmitter and which one causes most contractions? A neurotransmitter is a chemical that is released from a nerve to stimulate a muscle fiber to contract. The most common neurotransmitter is called acetylcholine.

  6. 5. What are the 2 types of protein fibers that make up muscles and how do they differ in appearance? The 2 fibers are ACTIN and MYOSIN. Actinis thin and lighter in color Myosin is dark and thicker

  7. 6. What is myoglobin, what does it do, and where is it found? Myoglobin is very similar to hemoglobin which carries oxygen in the blood. Myoglobin can store oxygen and is found in muscle cells that are used often. In chicken and turkey, myoglobin is in greater amounts in dark meat than in white meat.

  8. 7. Lactic Acid- when is it formed and what is the effect? Lactic acid forms when muscles are not receiving enough oxygen and must use anaerobic respiration to provide energy. As it build up, lactic acid causes muscle fatigue and muscles will be sore.

  9. 8. What is the difference between aerobic and anaerobic metabolism? Both processes break down glucose to provide energy. Aerobic occurs in the presence of oxygen, anaerobic occurs when no oxygen is available. Aerobic provides more energy per amount of glucose (36 ATP) than anaerobic (8 ATP). Lactic acid is the waste product of anaerobic metabolism.

  10. 9. What is the difference between hypertrophy and atrophy of muscles? Atrophy is when muscles get smaller due to lack of use Hypertrophy is when muscles get larger due to use.

  11. 10. How are muscles attached to bones? Tendons

  12. 11. What are the risks of using anabolic steroids? Why would athletes use them? Steroids can increase the cholesterol level in blood vessels which can cause heart disease, high blood pressure, kidney failures, and may lead to strokes. These steroids are a form of testosterone, so can also affect reproductive organs. They do cause the muscles to get bigger and have more endurance, so athletes may choose to take them to perform better, in spite of the risks to their health.

  13. 12. What is the difference between a strain and a sprain? Strain= overstretching or minor damage to the muscle Sprain= tearing or damaging the ligament around a joint Sprains take much longer to heal.

  14. 14. What causes and what is Muscular Dystrophy This is deterioration of muscles. This is a genetic condition and there is no cure. It is most common in white males and the symptoms begin to show within the first few years of age.

  15. 15. What are Muscle Cramps A cramp is a sudden, strong contraction of a muscle which does not relax. They can be very painful. They are usually caused when a muscle is not able to get enough blood to provide sufficient oxygen.

  16. 15. What is Fibromyalgia This disease is becoming more common, especially in middle-aged women. The symptoms are muscle pain, stiffness of joints, and over sensitivity to touch. There is no cure, but the symptoms can be improved with medication

  17. 16. Muscles that are used contain myoglobin, glycogen, and creatine phosphate. Tell the function of each. Myoglobin: stores oxygen Glycogen: stores glucose Creatine phosphate: stores energy

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