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Nervous System
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1.
(1 point)
Oligodendrocytes are located in the _____.
PNS
CNS
2.
(1 point)
Schwann cells are located in the _____.
PNS
CNS
3.
(1 point)
Which of the following types of cells is the most common in the CNS?
Astrocytes
Oligocytes
Neurocytes
Celiac cells
4.
(1 point)
Which of the following is a regulatory protein in the cytoplasm that helps the processes at the synapse?
Calmodulin
Protein kinase
Ligand
Gap protein
5.
(1 point)
Myasthenia gravis is due to ____ receptors being blocked and destroyed by antibodies.
Epinephrine
Nicotinic
Acetylcholine
Transient
6.
(1 point)
The primary effect of cocaine on the nervous system is that cocaine blocks the re-uptake of ____.
Monoamines
Transamines
Catecholamine
Monoamine oxidase
7.
(1 point)
Which of the following amino acids can function as a neurotransmitter in the CNS?
Leucine
Glutamic acid
Lysine
Valine
8.
(1 point)
Huntington's chorea has been linked with a deficiency in the amino acid ______.
Lysine
GABA
Valine
Tyrosine
9.
(1 point)
Which of the following is not considered a monoamine?
Epinephrine
Norepinephrine
Dopamine
Adenosine
10.
(1 point)
Which of the following is not considered a catecholamine?
Dopamine
Norepinephrine
Serotonin
Epinephrine
11.
(1 point)
Excessive polarization due to GABA is created due to the opening of ____ channels.
Ca++
Cl-
K+
Na+
12.
(1 point)
Valium has an effect on ____ to inhibit neural transmission.
Epinephrine
Norepinephrine
GABA
Dopamine
13.
(1 point)
The drug ____ blocks the reuptake of serotonin into presynaptic axons.
Prozac
Valium
Xanax
Deprenyl
14.
(1 point)
Which of the following toxins blocks Sodium Channels?
Srychnine
Neostigmine
Tetrodotoxin
Curare
15.
(1 point)
Clostridium botulinum
releases this enzyme that destroys peptide bonds.
Amylase
Endopeptidases
Exopeptidases
Protein kinase
16.
(1 point)
Multiple sclerosis is a disease that attacks the _______ of neurons in the CNS.
Myelin sheaths
Axon terminals
Sodium channels
Nicotinic receptors
17.
(1 point)
Which of the following is not considered a type of synapse?
Dendrodendritic
Axosomatic
Axoaxonic
Denoaxonic
18.
(1 point)
The progression of a nerve impulse with the nodes of Ranvier is called _______.
Saltatory conduction
Transmission
Unmyelinated conduction
Relative conduction
19.
(1 point)
Supporting cells located within the CNS are collectively called _____.
Neuroglia
Astrocytes
Perikaryon
Satellite cells
20.
(1 point)
Which of the following types of cells line the ventricles and spinal cord?
Astrocytes
Schwann cells
Ependymal cells
Oligodendrocytes
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