Nervous System
Multiple Choice from Dashboard Quiz
1. Which statement accurately describes the expression of genes in the nervous system?
a. Every gene in the human genome is expressed in the CNS.
b. Splice variants add diversity to brain function via beneficial mutations.
c. Most of the genes in the human genome are expressed in the CNS.
d. The genes that are expressed in the CNS are expressed equally in all neurons.
e. A small subset of the total human genome is expressed in the CNS.
Answer: c
Textbook Reference: Genetics and Genomics
2. Which technique first produced unequivocal support for the neuron doctrine of the nervous system
(as opposed to the reticular theory)?
a. Extracellular electrical recordings
b. EEG (electroencephalogram)
c. Calcium imaging
d. Electron microscopy of nervous tissue
e. Acetylcholinesterase staining
Answer: d
Textbook Reference: Cellular Components of the Nervous System
3. Which statement accurately describes neural and glial cells?
a. In both types, mitochondria are concentrated in the cell body.
b. The endoplasmic reticulum is concentrated in axons.
c. Exocytosis and endocytosis are important for synaptic communication.
d. Glial cells and neurons rapidly transmit long-range electrical signals.
e. Neither cell type relies on cytoskeletal filaments.
Answer: c
Textbook Reference: Cellular Components of the Nervous System
, 4. Refer to the figure.
Structure _______ is the main target for incoming signals received from the axons of other cells.
a. A
b. B
c. C
d. D
e. E
Answer: b
Textbook Reference: Neurons
5. A neuron that innervates (i.e., makes synaptic contact with) a large number of other neurons
a. represents convergent neural signaling.
b. represents divergent neural signaling.
c. represents massive neural integration.
d. must fire at very high frequencies to be useful.
e. can fire only at very low frequencies.
Answer: b
Textbook Reference: Neurons
Multiple Choice from Dashboard Quiz
1. Which statement accurately describes the expression of genes in the nervous system?
a. Every gene in the human genome is expressed in the CNS.
b. Splice variants add diversity to brain function via beneficial mutations.
c. Most of the genes in the human genome are expressed in the CNS.
d. The genes that are expressed in the CNS are expressed equally in all neurons.
e. A small subset of the total human genome is expressed in the CNS.
Answer: c
Textbook Reference: Genetics and Genomics
2. Which technique first produced unequivocal support for the neuron doctrine of the nervous system
(as opposed to the reticular theory)?
a. Extracellular electrical recordings
b. EEG (electroencephalogram)
c. Calcium imaging
d. Electron microscopy of nervous tissue
e. Acetylcholinesterase staining
Answer: d
Textbook Reference: Cellular Components of the Nervous System
3. Which statement accurately describes neural and glial cells?
a. In both types, mitochondria are concentrated in the cell body.
b. The endoplasmic reticulum is concentrated in axons.
c. Exocytosis and endocytosis are important for synaptic communication.
d. Glial cells and neurons rapidly transmit long-range electrical signals.
e. Neither cell type relies on cytoskeletal filaments.
Answer: c
Textbook Reference: Cellular Components of the Nervous System
, 4. Refer to the figure.
Structure _______ is the main target for incoming signals received from the axons of other cells.
a. A
b. B
c. C
d. D
e. E
Answer: b
Textbook Reference: Neurons
5. A neuron that innervates (i.e., makes synaptic contact with) a large number of other neurons
a. represents convergent neural signaling.
b. represents divergent neural signaling.
c. represents massive neural integration.
d. must fire at very high frequencies to be useful.
e. can fire only at very low frequencies.
Answer: b
Textbook Reference: Neurons
