Quiz
L18 Anatomy and Function of the Spinal Cord and Spinal Nerves
Questions in this quiz (18)
1Which neurons have their cell bodies within the CNS?
- AThe somatic efferent neuron and the first neuron of the sympathetic division of the autonomic nervous system.
- BThe somatic afferent neuron and the first neuron of the parasympathetic division of the autonomic nervous system.
- CThe somatic efferent neuron and the second neuron of the sympathetic division of the autonomic nervous system.
- DThe somatic efferent neuron and the second neuron of the parasympathetic division of the autonomic nervous system.
2Which statements about the external anatomy of the spinal cord are true?
- AIt ends at the superior border of the second lumbar vertebrae. (L2).
- BIt leaves the skull though the foramen magnum.
- CIt is within the meningeal sack, which sits inside the spinal cavity.
- DThe spinal cavity surrounds the vertebrae.
3The CSF (cerebrospinal fluid) is to provide cushioning as well as nutrients.
- ATrue
- BFalse
4From the deepest part to the most superior part, the spinal cord is protected by CSF > Adipose Tissue > Meninges > Vertebrae
- ATrue
- BFalse
5Which statement about the external anatomy of the associated features of the spinal cord is false?
- AThe conus medularis and filum terminale are connective tissue.
- BThe filum terminale is an extension of the nerves.
- CThe conus medularis is a tapered cone at the distal end of the spinal cord/meningeal sack.
6Spinal 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.
- ATrue
- BFalse
7Inferior to the end of the spinal cord, some lumbar and all sacral nerves continue to exit the vertebral column.
- ATrue
- BFalse
8Which statement about the cauda equina is false.
- AIt is the region of the meningeal sack inferior to the spinal cord.
- BAt its most inferior point, spinal nerves exit the cauda equina at the coccygeal level.
- CThe existence of the cauda equina means that you can only damage your spinal nerves if the spinal cord is damaged.
9The central canal is more of a theoretical or potential space than a real space.
- ATrue
- BFalse
10White matter is cell bodies.
- ATrue
- BFalse
11Which of these statements about the internal anatomy of the spinal cord is correct?
- ANeurons leaving the ventral root always synapse with skeletal muscle.
- BThe dorsal root ganglion carries afferent information to the brain.
- CThe anterior region of the spinal cord carries ascending information.
- DDamage to the posterior region of the spine affects motor control.
12The dorsal root ganglia and the sympathetic chain ganglia are the same thing.
- ATrue
- BFalse
13The dorsal root ganglion contain cell bodies of neurons which are unipolar.
- ATrue
- BFalse
14A spinal nerve contains both afferent and efferent information.
- ATrue
- BFalse
15The 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.
- ATrue
- BFalse
16The sympathetic chain ganglia diverge from the dorsal ramus.
- ATrue
- BFalse
17A bundle of axons in the PNS is called a tract.
- ATrue
- BFalse
18A nerve is fascicles surrounded by perineurium containing axons surrounded by endoneurium, bundled together with blood vessels and surrounded by epineurium.
- ATrue
- BFalse
Information
- Description
- • 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
- Author
- Mer Scott
- Language
- English
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- 45
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