Mer Scott
Quiz by , created more than 1 year ago

• The external and internal anatomy of the spinal cord+associated structures • How neural information is organised within the spinal cord+direction of information flow • How neural information enters and exits the spinal cord • The spinal nerves and how neural information travels in them out into the body • The structure of a peripheral nerve

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Mer Scott
Created by Mer Scott about 7 years ago
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L18 Anatomy and Function of the Spinal Cord and Spinal Nerves

Question 1 of 18

1

Which neurons have their cell bodies within the CNS?

Select one of the following:

  • The somatic efferent neuron and the first neuron of the sympathetic division of the autonomic nervous system.

  • The somatic afferent neuron and the first neuron of the parasympathetic division of the autonomic nervous system.

  • The somatic efferent neuron and the second neuron of the sympathetic division of the autonomic nervous system.

  • The somatic efferent neuron and the second neuron of the parasympathetic division of the autonomic nervous system.

Explanation

Question 2 of 18

1

Which statements about the external anatomy of the spinal cord are true?

Select one or more of the following:

  • It ends at the superior border of the second lumbar vertebrae. (L2).

  • It leaves the skull though the foramen magnum.

  • It is within the meningeal sack, which sits inside the spinal cavity.

  • The spinal cavity surrounds the vertebrae.

Explanation

Question 3 of 18

1

The CSF (cerebrospinal fluid) is to provide cushioning as well as nutrients.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 18

1

From the deepest part to the most superior part, the spinal cord is protected by CSF > Adipose Tissue > Meninges > Vertebrae

Select one of the following:

  • True
  • False

Explanation

Question 5 of 18

1

Which statement about the external anatomy of the associated features of the spinal cord is false?

Select one of the following:

  • The conus medularis and filum terminale are connective tissue.

  • The filum terminale is an extension of the nerves.

  • The conus medularis is a tapered cone at the distal end of the spinal cord/meningeal sack.

Explanation

Question 6 of 18

1

Spinal nerves are named after the vertebrae/spinal cord region they exit/enter. The spinal cord, from superior region to most inferior region, goes Cervical > Thoracic > Lumbar > Sacrum.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 18

1

Inferior to the end of the spinal cord, some lumbar and all sacral nerves continue to exit the vertebral column.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 18

1

Which statement about the cauda equina is false.

Select one of the following:

  • It is the region of the meningeal sack inferior to the spinal cord.

  • At its most inferior point, spinal nerves exit the cauda equina at the coccygeal level.

  • The existence of the cauda equina means that you can only damage your spinal nerves if the spinal cord is damaged.

Explanation

Question 9 of 18

1

The central canal is more of a theoretical or potential space than a real space.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 18

1

White matter is cell bodies.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 18

1

Which of these statements about the internal anatomy of the spinal cord is correct?

Select one of the following:

  • Neurons leaving the ventral root always synapse with skeletal muscle.

  • The dorsal root ganglion carries afferent information to the brain.

  • The anterior region of the spinal cord carries ascending information.

  • Damage to the posterior region of the spine affects motor control.

Explanation

Question 12 of 18

1

The dorsal root ganglia and the sympathetic chain ganglia are the same thing.

Select one of the following:

  • True
  • False

Explanation

Question 13 of 18

1

The dorsal root ganglion contain cell bodies of neurons which are unipolar.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 18

1

A spinal nerve contains both afferent and efferent information.

Select one of the following:

  • True
  • False

Explanation

Question 15 of 18

1

The ventral ramus is one of two diverging paths from a spinal nerve, which brings both afferent and efferent information to the posterior of the body.

Select one of the following:

  • True
  • False

Explanation

Question 16 of 18

1

The sympathetic chain ganglia diverge from the dorsal ramus.

Select one of the following:

  • True
  • False

Explanation

Question 17 of 18

1

A bundle of axons in the PNS is called a tract.

Select one of the following:

  • True
  • False

Explanation

Question 18 of 18

1

A nerve is fascicles surrounded by perineurium containing axons surrounded by endoneurium, bundled together with blood vessels and surrounded by epineurium.

Select one of the following:

  • True
  • False

Explanation

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