L18 Anatomy and Function of the Spinal Cord and Spinal Nerves

Descripción

• 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
Mer Scott
Test por Mer Scott, actualizado hace más de 1 año
Mer Scott
Creado por Mer Scott hace alrededor de 7 años
22
1

Resumen del Recurso

Pregunta 1

Pregunta
Which neurons have their cell bodies within the CNS?
Respuesta
  • 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.

Pregunta 2

Pregunta
Which statements about the external anatomy of the spinal cord are true?
Respuesta
  • 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.

Pregunta 3

Pregunta
The CSF (cerebrospinal fluid) is to provide cushioning as well as nutrients.
Respuesta
  • True
  • False

Pregunta 4

Pregunta
From the deepest part to the most superior part, the spinal cord is protected by CSF > Adipose Tissue > Meninges > Vertebrae
Respuesta
  • True
  • False

Pregunta 5

Pregunta
Which statement about the external anatomy of the associated features of the spinal cord is false?
Respuesta
  • 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.

Pregunta 6

Pregunta
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.
Respuesta
  • True
  • False

Pregunta 7

Pregunta
Inferior to the end of the spinal cord, some lumbar and all sacral nerves continue to exit the vertebral column.
Respuesta
  • True
  • False

Pregunta 8

Pregunta
Which statement about the cauda equina is false.
Respuesta
  • 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.

Pregunta 9

Pregunta
The central canal is more of a theoretical or potential space than a real space.
Respuesta
  • True
  • False

Pregunta 10

Pregunta
White matter is cell bodies.
Respuesta
  • True
  • False

Pregunta 11

Pregunta
Which of these statements about the internal anatomy of the spinal cord is correct?
Respuesta
  • 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.

Pregunta 12

Pregunta
The dorsal root ganglia and the sympathetic chain ganglia are the same thing.
Respuesta
  • True
  • False

Pregunta 13

Pregunta
The dorsal root ganglion contain cell bodies of neurons which are unipolar.
Respuesta
  • True
  • False

Pregunta 14

Pregunta
A spinal nerve contains both afferent and efferent information.
Respuesta
  • True
  • False

Pregunta 15

Pregunta
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.
Respuesta
  • True
  • False

Pregunta 16

Pregunta
The sympathetic chain ganglia diverge from the dorsal ramus.
Respuesta
  • True
  • False

Pregunta 17

Pregunta
A bundle of axons in the PNS is called a tract.
Respuesta
  • True
  • False

Pregunta 18

Pregunta
A nerve is fascicles surrounded by perineurium containing axons surrounded by endoneurium, bundled together with blood vessels and surrounded by epineurium.
Respuesta
  • True
  • False
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