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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Choose the best response regarding muscle spindles. |
They are effective detectors of skeletal muscle stretch and help bring about compensatory changes in muscle length. |
A. They are effective detectors of skeletal muscle stretch and help bring about compensatory changes in muscle length. B. They are effective detectors of muscle tension. C. They contain specialized muscle fibers called intrafusal fibers. D. They are found in skeletal muscle. |
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Interneurons in the spinal cord prevent muscle antagonists from interfering with an intended movement by triggering ________. |
reciprocal inhibition |
A. a tendon reflex B. a crossed extensor reflex C. a stretch reflex D. reciprocal inhibition |
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Polysynaptic reflexes ________. |
permit the flexibility of motor responses primarily because of interneuronal divergent/convergent networks |
A. have no interneurons B. permit the flexibility of motor responses primarily because of interneuronal divergent/convergent networks C. involve reciprocal inhibition D. involve more than two neurons |
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Which of the following statements about autonomic reflexes is FALSE? |
Autonomic reflexes have their receptors in skeletal muscle, joint capsules, and ligaments. |
A. Autonomic reflexes are also referred to as "visceral reflexes" because they involve the internal organs of the body. B. Some autonomic reflexes involve integration by the brain while others do not. C. Autonomic reflexes are all polysynaptic. D. Autonomic reflexes have their receptors in skeletal muscle, joint capsules, and ligaments. |
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Which of these is NOT a way to classify neural reflexes? |
By gender |
A. By gender B. Integrating region within the central nervous system C. Whether a reflex is instinctive or learned D. Efferent division that controls the effector |
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Which of the following is NOT a part of the process in which the CNS integrates/coordinates voluntary movements? |
Proprioceptors |
A. Decision making and planning B. Executing the movement C. Proprioceptors D. Initiating the movement |
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Which of the following statements is FALSE? |
Muscle spindles respond primarily to the tension a muscle develops during an isometric contraction, and they cause a relaxation reflex. |
A. Golgi tendons organs are found at the junction of tendons and muscle fibers. B. Muscle spindles are stretch receptors. C. Movement around flexible joints in the body is controlled by groups of synergistic and antagonistic muscles that act in a coordinated fashion. D. Muscle spindles respond primarily to the tension a muscle develops during an isometric contraction, and they cause a relaxation reflex. |
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Which of the following statements is FALSE? |
Reflexes whose responses are controlled by autonomic neurons are called somatic reflexes. |
A. Pavlov's dogs' salivating upon hearing a bell is the classic example of a learned reflex. B. Neural reflexes can be classified by the number of neurons in the reflex loop. C. Most reflexes have three or more neurons in the pathway. D. Reflexes whose responses are controlled by autonomic neurons are called somatic reflexes. |
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The normal contractile fibers of a skeletal muscle are called ___________________. |
extrafusal fibers |
A. gamma fibers B. extrafusal fibers C. alpha fibers D. intrafusal fibers |
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The combined sensory and motor neural pathway that control movements around a single joint is called a ______________. |
myotactic unit |
A. antagonistic muscle group B. synergistic muscle group C. myotactic unit D. reciprocal inhibition |
