The skeletal muscle complex known as the triad consists of
a) filaments, myofibrils, and sarcomeres.
b) actin, myosin, and sarcomeres.
c) a transverse tubule and two terminal cisternae.
d) A bands, H bands, and I bands.
e) actin, myosin, and filaments.
Answer: C
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Muscle
- During the recovery period the body's need for oxygen is increased because
- Which of the following is not a type of motor unit?
- Each skeletal muscle fiber is controlled by a motor neuron at a single
- How would the loss of acetylcholinesterase from the motor end plate affect skeletal muscle?
- Compared to a "typical" body cell, skeletal muscle cells are
- The region of the sarcomere that always contains thin filaments is the
- Creatine phosphate
- The type of contraction in which the muscle fibers do not shorten is called
- Fast fibers
- During anaerobic glycolysis
- During the recovery period following exercise, all of the following are true, except
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- Fast muscle fibers can adapt to aerobic metabolism by generating more mitochondria in response to
- Cross-bridges are portions of
- How would a drug that blocks acetylcholine receptors at the motor end plate affect skeletal muscle?
- Receptors for acetylcholine are located on the
- When calcium ion binds to troponin,
- In a sarcomere, thick filaments are linked laterally by proteins of the
- The thin filaments of striated muscle are made of which protein(s)?
- Which of the following statements is false?
- During activities requiring aerobic endurance
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- Which of the following best describes the term Z line?
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- When a muscle is stimulated repeatedly at a high rate, the amount of tension gradually increases to a steady maximum tension. This is called