Answer:
Leave the blower running for ventilation while anyone is inside. Running the Silo blower for 15 to 45 minutes before entering the silo and while you are in the silo will help remove silo gas, but this is not a substitute for a self-contained breathing apparatus.
Explanation:
Both C and D are the answers. But I will go with D
<u>Microglia cells </u>are glial cells that respond to injury or disease by multiplying, and then engulfing cellular debris or even entire cells.
<h3>Functions of microglia</h3>
Microglia cells are the immune cells of the central nervous system and consequently play important roles in brain infections and inflammation. Recent in vivo imaging studies have revealed that in the resting healthy brain, microglia are highly dynamic, moving constantly to actively survey the brain parenchyma.
These active microglia can rapidly respond to pathological insults, becoming activated to induce a range of effects that may contribute to both pathogenesis, or to confer neuronal protection.
However, interactions between microglia and neurons are being recognized as important in shaping neural circuit activity under more normal, physiological conditions. During development and neurogenesis, microglia interactions with neurons help to shape the final patterns of neural circuits important for behaviour and with implications for diseases.
Learn more about glial cells
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