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

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

<p>Sympathetic nervous system (A)</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 (D)</p> Signup and view all the answers

Where do the parasympathetic nerves originate from?

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

What is the function of the sympathetic chain?

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

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

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

What role do glial cells play in the nervous system?

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

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

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

How many pairs of cervical spinal nerves do humans have?

<p>8 (A)</p> Signup and view all the answers

What type of sensory information does somatic sensory include?

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

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

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

What is another name for the autonomic nervous system?

<p>Visceromotor system (A)</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 (D)</p> Signup and view all the answers

What type of information is transmitted via the afferent division?

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

Which type of sensory information is related to visceral sensory?

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

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

<p>Through the efferent division (D)</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 (A)</p> Signup and view all the answers

What is the term for the hills in the brain?

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

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

<p>80% (A)</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 (C)</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 (A)</p> Signup and view all the answers

What is the function of the cerebrospinal fluid?

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

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

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

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

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

What is the function of the parasympathetic nervous system?

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

Which of the following accurately describes glial cells?

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

Which spinal nerves are composed of 5 pairs?

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

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

<p>Brain (D)</p> Signup and view all the answers

In which division would you classify the sensation of hunger?

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

Which division involves the innervation of skeletal muscles?

<p>Somatic motor (A)</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. (D)</p> Signup and view all the answers

What kind of action does the autonomic nervous system control?

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

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

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

Which system is responsible for the innervation of glands?

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

What does the central nervous system (CNS) comprise?

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

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