The second stage of the development of neurons is called ____
a. myelination. c. mitosis.
b. migration. d. magnetoencephalography.
Question 2All of the following are true of the proliferation stage of neurons except
a. it is also called neurogenesis.
b. it occurs during the first 20 weeks after conception.
c. all the neurons that a person will ever have are produced during this period.
d. during its peak, several hundred thousand neurons are generated each minute.
Question 3In the process of neuralation,
a. the neural tube develops. c. nerves develop.
b. neurons develop. d. neurotransmitters develop.
Question 4The term gray matter in relation to the brain refers to
a. myelinated axons mostly beneath the surface of the brain.
b. cell bodies in both cortical and subcortical regions.
c. cell bodies above the cortex.
d. the activation of a neuron, causing it to fire
Question 5What protects and insulates axons, speeding the rate at which nervous impulses can be sent, and reduces interference from other neurons?
a. myelin c. GABA
b. serotonin d. nodes
Question 6Which of the following is not true of the messages that are passed from one neuron to another?
a. They are electrical.
b. They release neurotransmitters.
c. They travel along axons.
d. They are read at the nucleus of the receiving neuron.
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