Chapter 6 - Nervous System

Epidurals during labor are administered:
1. between the pia and arachnoid meninges
2. deep to the pia meninges
3. between the arachnoid and dura meninges
4. superficial to the dura meninges
Which of the following is false?
1. grey matter is unmyelinated
2. internodes are myelinated
3. white matter is myelinated
4. nodes are myelinated
Which of the following statements about the spinal cord is incorrect.
1. spinal reflexes require input from the brain
2. extends from brain to L1 and L2
3. divided into 4 regions (cervical, thoracic, lumbar, sacral)
4. 31 spinal nerves (C1-C8, T1-T12, L1-L5, S1-S5, 1 coccygeal)
The peripheral nervous system (PNS) includes all but?
1. parasympathetc division
2. autonomic nervous system (ANS)
3. central nervous system (CNS)
4. sympathetc division
5. somatic nerous system (SNS)
Which of the following common injection sites is no longer used because of its proximity to the sciatic nerve?
1. vastus lateralis site
2. dorsogluteal site
3. ventrogluteal site
4. deltoid site
When you have shingles, what determines where on the body the outbreak will be?
1. shingles outbreaks nondeterministic and appear in random locations
2. shingles outbreaks always appear on the lower body
3. shingles outbreaks follow the sensory nerve's dermatome
4. shingles outbreaks always appear on the upper body
Which root has the spinal ganglion in the middle of it?
1. posterior root
2. anterior root
The 4 major nerve plexues include all but:
1. sacral plexus
2. brachial plexus
3. lumbar plexus
4. cervical plexus
5. thoracic plexus
List the spinal cord meninges from most superficial to least.
1. dura → arachnoid → pia
2. arachnoid → dura → pia
3. arachnoid → pia → dura
4. pia → arachnoid → dura
Neuromuscular junctions and neuroglandular junctions are:
1. electrical synapses
2. chemical synapses
Which of the following is incorrect?
1. spinal nerve C1 is above vertebra C1
2. spinal nerve C8 is below vertebra C7
3. spinal nerve T1 is below vertebra T1
4. spinal nerve C7 is below vertebra C6
5. spinal nerve T3 is below vertebra T2
6. spinal nerve C2 is below vertebra C1
Grey matter is greatest in areas dedicated to sensory and motor control. Sensory information arrives through the __________ root of the spinal chord, leaves through the __________ root of the spinal chord.
1. posterior, anterior
2. anterior, posterior
In the CSN the neurogila resposible for myelination are __________, and in the PNS the neurogila responsible for myelination are __________.
1. schwann cells, oligodendrocytes
2. satallite cells, ependymal cells
3. ependymal cells, satallite cells
4. oligodendrocytes, schwann cells
Motor neurons are typically __________, and sensory neurons are typically __________.
1. bipolar neurons, anaxonic neurons
2. multipolar neurons, unipolar neurons
3. unipolar neurons, multipolar neurons
4. anaxonic neurons, bipolar neurons
The efferent division of the peripheral nervous system (PNS) includes all but?
1. somatic sensory receptors
2. parasympathetc division
3. autonomic nervous system (ANS)
4. somatic nerous system (SNS)
5. sympathetc division
Identity the mismatched nerve plexues:
1. sacral plexus (sciatic nerve)
2. sacral plexus (pudendal nerve)
3. brachial plexus (diaphram)
4. cervical plexus (diaphram)
Cerebrospinal fluid is located in the subarachnoid space which is:
1. between the arachnoid and dura meninges
2. between the pia and arachnoid meninges
3. superficial to the dura meninges
4. deep to the pia meninges
In general, repair is more possible in the CSN (astrocytes) than the PNS (schwann cells)?
1. true
2. false
Interneurons are located between sensory and motor neurons, are found mostly in brain and spinal cord, and are involved in memory, planning, and learning.
1. true
2. false
There are __________ cranial nerves and __________ spinal nerves.
1. 12, 31
2. 31, 12
3. 31, 31
4. 12, 12

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