Meet Your Microglia: By SciShow Psych

What is the primary difference between neurons and glial cells regarding electrical impulses?

• Neurons produce electrical impulses, while glial cells do not.

• Glial cells produce electrical impulses, while neurons do not.

• Both neurons and glial cells produce electrical impulses.

• Neither neurons nor glial cells produce electrical impulses.

From which family of stem cells do microglia originate?

• Neural stem cells

• Mesenchymal stem cells

• Hematopoietic stem cells

• Epithelial stem cells

What is a key function of microglia in maintaining brain health?

• Producing hormones that regulate mood.

• Forming protective barriers around blood vessels.

• Cleaning out dead cells, pathogens, and harmful protein clusters.

• Transmitting sensory information to the brain.

Are you enjoying the video lesson?

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What is one way microglia protect the brain?

• By producing hormones that calm neurons.

• By recruiting white blood cells to attack invaders like viruses.

• By forming a protective barrier around the brain.

• By directly consuming healthy neurons.

Which of the following factors can alter microglia behavior?

• Only physical trauma.

• Diet, stress, and sleep problems.

• Genetic predispositions only.

• Positive childhood experiences.

How can microglia activity be linked to depression?

• Only through overactive microglia destroying healthy synapses.

• Only through underactive microglia failing to perform their functions.

• Both underactive and overactive microglia can contribute to depression.

• Microglia activity has no known link to depression.

What is a possible reason autistic children tend to have more synapses in some parts of the brain?

• Their brains produce more neurons than neurotypical children.

• Their microglia did not prune as many synapses during development.

• They have a genetic mutation that prevents synapse destruction.

• Their brains are synchronized differently from birth.