Chapter 6 - Nervous System

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

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