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Physiology
Week 7
Question | Answer |
---|---|
The rotator cuff muscles and tendons form a cufflike arrangement around the _____ joint. | shoulder |
Which of the following terms describes an isometric contraction? | Static tension |
The protein molecule that has heads jutting out for cross-bridging is: | myosin |
Which type of muscle is responsible for peristalsis? | Single-unit smooth |
The ion necessary for cross-bridging is: | calcium |
Which of the following statements is incorrect about motor units? | The more muscle fibers stimulated by a motor neuron, the more precise the movements of that muscle can be. |
The knee joint is an example of a _____ joint. | hinge |
Moving a part of the body forward is: | protraction |
Attempting to pick up an object too heavy to lift would result in which type of muscle contraction? | Isometric |
After it is released from the sarcoplasmic reticulum, the calcium combines with which protein? | Troponin |