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10 Cards in this Set
- Front
- Back
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1. The fluid-filled cavity of the developing neural tube becomes the a. Forebrain. b.Midbrain. c.Spinal cord. d Ventricular system. |
d. Ventricular system. |
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Stem cells are important for which of the following developmental processes? a. migration. b. proliferation. c. myelination. d. synaptogenesis. |
b. proliferation. |
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What term describes the movement of primitive neurons and glia within the developing nervous system? a. differentiation. b. migration. c. myelination. d. proliferation. |
b. migration. |
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After the migrating neuron reaches it s destination, ____ begin to form. a.dendrites. b.axons. c.nuclei. d ganglions |
a. dendrites. |
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The formation of new synapses is called a. synaptogenesis. b. differentiation. c. migration. d. fusion. |
a. synaptogenesis. |
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Brain cells that are neither neurons nor glia, but which are capable of dividing and then differentiating into neurons or glia are called a. Parallel fibres. b. Intrinsic cells. c. Stem cells. d. Glomeruli. |
c. Stem cells. |
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Axons sort themselves over the surface of the target area a. By following a gradient of chemicals. b. Through apoptosis. c. Through necrosis. d. Based on their size. |
a. By following a gradient of chemicals. |
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Apoptosis a.Is a programmed mechanism of cell death. b.Promotes the survival and growth of the axon. c.Promotes the survival and growth of dendrites. d.Promotes the activity of neurons |
a. Is a programmed mechanism of cell death. |
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Massive cell death in the brain during prenatal development is a.An indication of a genetic abnormality. b.An indication of restricted blood flow to the foetus. c.Usually due to an autoimmune disorder. d.normal. |
d. normal. |
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In development, neurotrophins _________. During adulthood, they _________.
a. Preserve neurons; produce apoptosis. b. Produce apoptosis; increase neural branching. c. Facilitate differentiation; facilitate migration. d. Preserve neurons; increase neural branching. |
d. Preserve neurons; increase neural branching. |
