How does the cell membrane help maintain the health of the cell?

The cell membrane helps maintain the health of the cell by regulating the transport of materials in and out of the cell.

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Explanation:

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.