Function and Structure of the Nervous System
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Questions and Answers

Which part of the nervous system consists of the brain and spinal cord?

  • Somatic nervous system (SNS)
  • Autonomic nervous system (ANS)
  • Peripheral nervous system (PNS)
  • Central nervous system (CNS) (correct)

What is the main function of the nervous system?

  • Digesting food
  • Regulating body temperature
  • Producing hormones
  • Controlling and integrating body activities (correct)

What are the two main cell types of nervous tissue?

  • Erythrocytes and leukocytes
  • Fibroblasts and adipocytes
  • Bacteria and viruses
  • Neurons and neuroglia (correct)

What is the function of dendrites in a neuron?

<p>Carry impulses to the cell body (A)</p> Signup and view all the answers

Which part of the nervous system controls and integrates the various activities of the body, such as circulation and respiration?

<p>Central nervous system (CNS) (C)</p> Signup and view all the answers

Which type of neuron is the most common in the nervous system?

<p>Multipolar neurons (A)</p> Signup and view all the answers

What is the main function of the autonomic nervous system (ANS)?

<p>Regulating involuntary bodily functions (C)</p> Signup and view all the answers

What type of neuron has two or more dendrites and a single axon with one or more collateral branches?

<p>Multipolar neurons (A)</p> Signup and view all the answers

Which cell type in nervous tissue supports the neurons?

<p>Neuroglia (glial cells) (A)</p> Signup and view all the answers

What is composed of layers of lipid and protein material called myelin sheath?

<p>Axon (B)</p> Signup and view all the answers

What is the function of neuroglia in the nervous tissue?

<p>Support and protect the neurons (C)</p> Signup and view all the answers

Which part of the nervous system is responsible for reacting to continuous changes in internal and external environments?

<p>Autonomic nervous system (ANS) (D)</p> Signup and view all the answers

What is the main function of the myelin sheath around some axons?

<p>Insulate and increase the speed of impulse conduction (A)</p> Signup and view all the answers

Which type of neuron is found around some axons and is composed of layers of lipid and protein material called myelin sheath?

<p>Pseudounipolar neuron (B)</p> Signup and view all the answers

Which part of the nervous system consists of the remainder of the nervous system outside of the CNS?

<p>Peripheral nervous system (PNS) (B)</p> Signup and view all the answers

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