Nervous System Components
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Questions and Answers

What is the primary function of the corpus callosum?

  • To produce cerebrospinal fluid
  • To regulate the sympathetic nervous system
  • To integrate sensory information from the parietal lobe
  • To facilitate inter-hemispheric communication (correct)
  • Which lobe of the brain is responsible for controlling vision?

  • Frontal lobe
  • Temporal lobe
  • Occipital lobe (correct)
  • Parietal lobe
  • What is the main component of white matter?

  • Myelinated axons (correct)
  • Dendrites and unmyelinated axons
  • Cell bodies and nuclei
  • Ganglia and fasciculi
  • Where are the neuronal cell bodies located in the peripheral nervous system?

    <p>In the ganglia outside the spinal cord</p> Signup and view all the answers

    What is the function of the cerebrospinal fluid?

    <p>To cushion and provide homeostasis to the brain and spinal cord</p> Signup and view all the answers

    Which nervous system is responsible for the 'fight or flight' response?

    <p>Sympathetic nervous system</p> Signup and view all the answers

    What is the characteristic of the cerebral cortex?

    <p>It is 2-4mm thick and consists of 6 layers</p> Signup and view all the answers

    Where do the parasympathetic nerves originate from?

    <p>Brainstem or S-levels</p> Signup and view all the answers

    What is the function of the sympathetic chain?

    <p>To synapse with sympathetic nerves</p> Signup and view all the answers

    What is the term for the deep grooves or clefts in the brain?

    <p>Fissure</p> Signup and view all the answers

    What role do glial cells play in the nervous system?

    <p>Allowing for optimal physiochemical environment</p> Signup and view all the answers

    Which of the following is a component of the peripheral nervous system (PNS)?

    <p>Cranial nerves</p> Signup and view all the answers

    How many pairs of cervical spinal nerves do humans have?

    <p>8</p> Signup and view all the answers

    What type of sensory information does somatic sensory include?

    <p>Touch and temperature</p> Signup and view all the answers

    Which type of motor control involves the innervation of smooth and cardiac muscles?

    <p>Visceral motor</p> Signup and view all the answers

    What is another name for the autonomic nervous system?

    <p>Visceromotor system</p> Signup and view all the answers

    Which of the following would NOT be considered a function of the autonomic nervous system?

    <p>Skeletal muscle activation</p> Signup and view all the answers

    What type of information is transmitted via the afferent division?

    <p>Sensory information towards the CNS</p> Signup and view all the answers

    Which type of sensory information is related to visceral sensory?

    <p>Visceral irritation</p> Signup and view all the answers

    Where are commands from the brain sent out to the PNS?

    <p>Through the efferent division</p> Signup and view all the answers

    Which part of the brain is responsible for controlling speech, motor cortex and is located at the anterior part of the brain?

    <p>Frontal Lobe</p> Signup and view all the answers

    What is the term for the hills in the brain?

    <p>Gyri</p> Signup and view all the answers

    What percentage of the brain is made up of the cerebral cortex?

    <p>80%</p> Signup and view all the answers

    What is the function of the sympathetic nervous system during the 'fight or flight' response?

    <p>Closes sphincters</p> Signup and view all the answers

    What is the term for the white matter structure that surrounds the horn within the spinal cord?

    <p>Funiculi</p> Signup and view all the answers

    What is the function of the cerebrospinal fluid?

    <p>Cushioning, homeostasis, and chemical buffering</p> Signup and view all the answers

    Which part of the brain is responsible for controlling hearing and smell?

    <p>Temporal Lobe</p> Signup and view all the answers

    What is the term for the small bundles of nerve fibers with common origin, destination, and function?

    <p>Fasciculi</p> Signup and view all the answers

    What is the location of the grey matter in the spinal cord?

    <p>Inner horns</p> Signup and view all the answers

    What is the function of the parasympathetic nervous system?

    <p>Increases digestion</p> Signup and view all the answers

    Which of the following accurately describes glial cells?

    <p>They assist in the insulation of neuron fibers.</p> Signup and view all the answers

    Which spinal nerves are composed of 5 pairs?

    <p>Lumbar and sacral</p> Signup and view all the answers

    Which of the following is not categorized under the peripheral nervous system (PNS)?

    <p>Brain</p> Signup and view all the answers

    In which division would you classify the sensation of hunger?

    <p>Visceral sensory</p> Signup and view all the answers

    Which division involves the innervation of skeletal muscles?

    <p>Somatic motor</p> Signup and view all the answers

    What is a primary characteristic of the autonomic nervous system?

    <p>It consists of smooth muscle and gland control.</p> Signup and view all the answers

    What kind of action does the autonomic nervous system control?

    <p>Involuntary cardiac muscle contractions</p> Signup and view all the answers

    Which of the following relates to sensory (Afferent) division?

    <p>Transmits information from spinal cord to brain</p> Signup and view all the answers

    Which system is responsible for the innervation of glands?

    <p>Visceral motor system</p> Signup and view all the answers

    What does the central nervous system (CNS) comprise?

    <p>Brain and spinal cord</p> Signup and view all the answers

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