Amyotrophic Lateral Sclerosis [ALS] | Mechanism of Neuron Death

Amyotrophic Lateral Sclerosis [ALS] | Mechanism of Neuron Death

Assessment

Interactive Video

Science, Biology, Health Sciences

University

Hard

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The video discusses amyotrophic lateral sclerosis (ALS), focusing on the biochemical mechanisms leading to neuron death. It explains how protein aggregates, known as inclusion bodies, form due to genetic mutations or environmental triggers. These aggregates can act like prions, spreading from cell to cell, causing oxidative stress and neuron death. The video also covers glutamate-mediated excitotoxicity, where mutant transport proteins lead to excessive calcium influx, resulting in neuron death. Additionally, it highlights the inflammatory response triggered by prions, which further damages neurons, leading to paralysis.

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4 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

How do environmental triggers relate to the onset of ALS?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the impact of excessive calcium levels in motor neurons?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the role of glial cells in the pathology of ALS.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the observable effects of ALS on skeletal muscle function?

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