We Are Told That Every Surface We Touch Is Teeming

question 43

Essay

We are told that every surface we touch is teeming with bacteria, and bacteria are found in the pools we swim in, the water we wash with, and on the hands of friends. Why are we not inundated with bacterial infections on our skin?

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Definitions:

Temperature Receptors

Specialized sensory receptors that detect variations in temperature, involved in thermoregulation and the perception of warmth or coldness.

Dermal Root Sheath

A layer of cells surrounding the hair follicle, providing it structural support and nourishment.

Hair Bulb

The rounded, club-shaped structure at the base of a hair follicle containing the cells that produce hair, and the site of hair growth.

Hair Shaft

The portion of hair that extends above the skin surface, made of tightly compacted keratin cells.