Chapter 6 - Nervous System

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

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