which of the following is not a function of the neuroglia? course hero

Which cells form a capsule around neurons?

a. Schwann cells form a capsule around neurons

What happens if the nerve does not function?

a. The nerve will not function and will die off

What happens to membrane potential during depolarization?

a. During the depolarization phase, membrane potential becomes positive

Which part of the plasma membrane has an excess of negative charges?

c. The interior of the plasma membrane has an excess of negative charges

Do Action Potentials lack a repolarization phase?

a. Action potentials would lack a repolarization phase

Do most CNS neurons lack centrioles?

Most CNS neurons lack centrioles. This observation explains

What do microglia do?

A) Microglia help to circulate cerebrospinal fluid within the CNS.

Which cell can myelinate multiple axons at the same time?

B) Schwann cells possess multiple processes which allow them to myelinate multiple segments of axon at one time, while oligodendrocytes are only capable of myelinating a single segment of axon.

How long does glycogen last in astrocytes?

This glycogen is used to help meet the high metabolic needs of the CNS. The main source is blood glucose, but glycogen levels can sustain the need for 5 to 10 min.

What is the main source of glycogen in astrocytes?

Astrocytes store all the glycogen present in the CNS. This glycogen is used to help meet the high metabolic needs of the CNS. The main source is blood glucose, but glycogen levels can sustain the need for 5 to 10 min. K+ permeability.

How many neurotransmitters do astrocytes synthesize?

Astrocytes synthesize over 20 different neurotransmitters and take up excess neurotransmitters to help terminate signals at the synapse.