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a. Multipolar neurons control skeletal muscles.

Which of the following is (are) correct concerning structural classifications of neurons?. a. Multipolar neurons control skeletal muscles. b. Bipolar neurons function in the senses of hearing, smell, and vision. c. Anaxonic neurons have indistinguishable axons and dendrites.

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a. Multipolar neurons control skeletal muscles.

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  1. Which of the following is (are) correct concerning structural classifications of neurons? a.Multipolar neurons control skeletal muscles. b. Bipolar neurons function in the senses of hearing, smell, and vision. c. Anaxonic neurons have indistinguishable axons and dendrites. d. All of the above statements are correct.

  2. The two functional divisions of the peripheral nervous system are the afferent and efferent divisions. What are their respective functions? a. control of the central nervous system; control of the peripheral nervous system b. control of neurons; control of neuroglia c. sensory input to the CNS; carries motor commands to muscles or glands d. carries motor commands to muscles or glands; sensory input to the CNS

  3. Damage to somatic motor neurons of the efferent division of the PNS would affect the ability to: a. learn new facts. b. stimulate skeletal muscle. c. experience sensory stimuli. d. remember past events.

  4. The functional classification of neurons that are responsible for integrating sensory information with motor output are called ______. These neurons are located __________. a. motor neurons; in the anterior horn of the spinal cord b. proprioceptors; in skeletal muscles and joints c. interneurons; almost exclusively in the CNS d. interoceptors; in the digestive, respiratory, and cardiovascular systems

  5. Which of the CNS neuroglial cells function as phagocytic cells? a. satellite cells b. microglia c. oligodendrocytes d. astrocytes

  6. Neuroglia of the PNS include __ and __, and their respective functions are __ and __. a. astrocytes; oligodendrocytes; guide axon regeneration; myelinate axons b. ependymal cells; Schwann cells; form cerebrospinal fluid; form myelin sheath c. satellite cells; Schwann cells; regulate O2, CO2, nutrient and transmitter levels; myelinate axons d. microglia; ependymal cells; regulate environment around neurons; form cerebrospinal fluid

  7. Which type of neuroglia would be found lining the hollow regions of the CNS? a. astrocytes b. microglia c. ependymal cells d. oligodendrocytes

  8. The gated channels that respond to physical distortion of the membrane surface are called ________. These channels are important in ________. a. chemically gated channels; dendrites b. mechanically gated channels; sensory receptors c. voltage-gated channels; axons of multipolar and unipolar neurons d. passive channels; areas where the channels must remain open

  9. The effects of a neurotransmitter on the postsynaptic membrane depend on: a. the time involved in calcium influx across the synapse. b. the rate of enzyme inhibition. c. the properties of the release of neurotransmitter. d. the type of receptor.

  10. One axon propagates action potentials at 50 meters per second; another carries them at 1 meter per second. Which axon is myelinated? a. axon that propagates at 50 meters per second b. axon that propagates at 1 meter per second

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