A woman was chopping vegetables when she accidentally cut her finger. A few days later, she observed a brownish layer on the wound on her finger. Explain how the wound healed itself over time.

Due to access to oxygen. The woman's wound is starting to " scab up".

Explanation:

The wound has access to Oxygen.

First, the blood vessels dilate (so the blood cells can go to the damaged tissue)

Then, there's platelet's aggregation (the primary hemostasis) to stop the bleeding

Fibroblasts make collagen to cicatrize the wound

Neutrophils consume the bacteria.

After that, the macrophage removes the damages tissues

And finally, the would closes

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