Anatomy and Functions of the Spinal Cord Quiz
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Questions and Answers

What is the main contribution of the spinal cord and spinal nerves to homeostasis?

  • Providing a bony covering to the spinal cord
  • Acting as a site for EPSPs and IPSPs integration
  • Processing reflexes (correct)
  • Conducting sensory and motor impulses

Which meningeal layer is the outermost covering of the spinal cord?

  • Pia mater
  • Arachnoid mater
  • Denticulate ligaments
  • Dura mater (correct)

What is the function of denticulate ligaments in relation to the spinal cord?

  • Process reflexes
  • Serve as a conduction pathway for motor impulses
  • Protect against sudden displacement (correct)
  • Carry cerebrospinal fluid

What is the purpose of a spinal tap?

<p>To withdraw cerebrospinal fluid for diagnostic purposes (B)</p> Signup and view all the answers

Where does the spinal cord begin and end in an adult human?

<p>Begins at the second lumbar vertebra and ends at the coccyx (D)</p> Signup and view all the answers

What is the main function of the subarachnoid space in relation to the spinal cord?

<p>To carry cerebrospinal fluid (C)</p> Signup and view all the answers

What is the tapered portion of the spinal cord known as?

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

Which part of the spinal cord contains primarily cell bodies of neurons and neuroglia?

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

What is the function of sensory tracts in the spinal cord?

<p>Conduct nerve impulses toward the brain (A)</p> Signup and view all the answers

How many pairs of thoracic nerves emerge from the spinal cord?

<p>12 pairs (A)</p> Signup and view all the answers

What is located at the center of the gray commissure within the spinal cord?

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

Which part of the spinal cord allows for reflexes to be processed?

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

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