Neuro

Which function is a characteristic primarily of neurons only, and not glia?

a. Transmits action potentials b. Supports electrical signals c. Repairs the nervous system

d. Prevents regeneration of the nervous system e. Produces myelin

Which intracellular component facilitates the processes of endocytosis and exocytosis underlying synaptic communication?

a. Mitochondria

b. Endoplasmic reticulum

c. Cytoskeleton

d. Golgi apparatus

e. Nucleus

Which statement best describes the function of a neuron with multiple, highly branched dendrites and one axon?

a. It passes information directly to multiple neurons.

b. It cannot integrate information from multiple neurons.

c. It receives information from only one other neuron.

d. It integrates information from many neurons.

e. The information it receives will not be relayed.

Which statement best describes most neurons?

a. They receive information via axons

b. They transmit information to other cells via dendrites.

c. They are polarized.

d. They conduct signals bidirectionally.

e. They transmit electrical signals via cytoplasmic continuity.

Which cell produces myelin in the nerves of the peripheral nervous system?

a. Astrocyte

b. Neuron

c. Schwann cell

d. Microglia

e. Neural progenitor cell

In the mature central nervous system, glial stem cells with the properties of astrocytes can give rise to

a. astrocytes.

b. neurons.

c. oligodendrocytes.

d. astrocytes and oligodendrocytes.

e. astrocytes, oligodendrocytes, and neurons.

What are the main types of glial cells, and what is the main function of each?