Which of the following is not likely to result from endurance training alone?a. Increase in oxidative enzymes in the muscle fiberb. A transition from type IIb to type IIa muscle fibersc. Hypertrophy of the muscle fibersd. Increase in blood supply to the muscle fibers

Muscle Cell Anatomy O Which of the following is NOT performed by the plasmalemma? a. accommodating muscle fiber stretch b. conducting action potentials c. transporting nutrients into the muscle fiber d. storing Ca2+ ions to enable contraction O0000

Why is sarcoplasmic hypertrophy a limitation with size training? It adds more actin and myosin. It decreases glycogen content of the muscle cell. It adds mass that is not able to produce force. It results in greater stores of intracellular fat.

Match each description to the correct phase of a muscle twitch 73. Sección Ca2+ transported back into the sarcoplasmic reticulum 74. Sarcomeres shorten 75. Depolarization occurs in the T-Tubule 76. Muscle Tension decreases A. Latent period B. Contraction phase C. Relaxation phase

Which of the muscle fiber types have the lowest amount of capillaries, mitochondria, and myoglobin, and are responsible for the most powerful athletic movements?  Type I  Type Ia  Type IIa  Type IIx

In which type of muscle fibers is ATP synthesized aerobically in mitochondria?                                 smooth                                 cardiac                                 skeletal                                 all of the above 2. In which types of muscle fibers are action potentials transmitted from one cell to the next through gap junctions?                                 unitary smooth and cardiac                                 cardiac and skeletal                                 skeletal and smooth   3. All types of muscle have actin and myosin, but not all types have sarcomeres."  True    False

Muscle fatigue is assessed by which of the following direct measures? O a. Mean Power Output O b. Muscle lactate concentration O c. Muscle glycogen concentration d. Electromyography

Describe what is happening to the following parts of a sarcomere during muscle contraction. a. H band b. I band c. A band d. Z lines

Which of the following muscle proteins isnot intracellular?a. actinb. myosinc. collagen

Delayed onset muscle soreness caused by lactate. is is not select this choice if the answer depends on the duration of exercise.