How Does Hair Grow?

Hair follicles are a part of the skin that are responsible for growing hair strands. They are constantly being supplied by blood vessels. The follicles produce keratinised cells as the hairs grow, and the hair shaft grows out of...

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What is Pharmacology?

What is pharmacology? It is a branch of biology, medicine, and pharmaceutical sciences concerned with the mechanism of the action of drugs. A drug is defined as any substance that exerts a biochemical or physiological effect. It...

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