Astrocytes Participate in Thousands of Synapses with Neurons

question 120

Multiple Choice

Astrocytes participate in thousands of synapses with neurons.Their presence can influence activity in a postsynaptic neuron by

• A) storing glycogen.
• B) increasing myelination.
• C) increasing permeability of blood vessels.
• D) conducting action potentials.
• E) the uptake and release of neurotransmitters.

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Definitions:

Vegetation

The plants and plant life of a region or ecosystem, serving key roles in habitats by providing food and oxygen and influencing water cycles.

Increasing Latitude

Refers to moving towards the poles (north or south) from the equator, generally associated with changes in climate, biodiversity, and daylight hours.

Permafrost

A layer of soil or rock, below the surface of the earth, that remains frozen for two or more consecutive years, found mostly in polar regions.

Permanently Frozen Ground

Ground that remains at or below 0°C (32°F) for at least two consecutive years, typically found in polar regions, known as permafrost.