Principles of Biology
Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 33.1, Problem 1TYK

Which of the following is false?

  1. The CNS of vertebrates comprises the brain and spinal cord.
  2. Certain glial cells produce a myelin sheath that wraps around axons.
  3. A typical reflex arc consists of only a small number of both sensory and motor cells.
  4. Motor neurons are afferent neurons that convey information into the CNS.
  5. Interneurons are found in the CNS and are specialized for communication with many other cells.

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All of the followings are correct except, ---------------------. Even “simple” nervous systems can display complex behavior More complex nervous systems show centralization In many species, ganglia grouped together at the anterior end form an integrating center Nerve nets carry action potentials in both directions interconnected nerves are called ganglia
Match the following components of the nervous system with their correct descriptions   Interneurons   Sensory neurons   Motor neurons   Nerve net   Neurons that send signals to effector cells like muscles and glands that affect change              Neurons that carry signals from the environment to the central nervous system from the peripheral nervous system              Neurons that transmit signals between other neurons, part of the CNS        A diffuse arrangement of neurons that are found in jellyfish and other cnidarians
We regularly make conscious decisions to make specific muscular movements. For example, when using the touch interface of your phone, you make a conscious effort to scroll up and down the screen using your finger. In contrast, there are many muscular movements that cannot be controlled voluntarily. For example, you cannot make your heart stop by thinking about it. Which of the following statements correctly identifies the parts of the nervous system that are involved in voluntary and involuntary actions, respectively? Select one: a. Motor neurons of the somatic nervous system and motor neurons of the autonomic nervous system b. Motor neurons of the autonomic nervous system and sensory neurons of the somatic nervous system c. Sensory neurons of the somatic nervous system and sensory neurons of the autonomic nervous system d. Sensory neurons of the peripheral nervous system and motor neurons of the autonomic nervous system
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