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All questions
All questions
Body
Body
How your body and the medicines you take work.
Body
How do antibiotics work?
Antibiotics attack parts that only bacteria have, such as their cell wall and their protein factories. The bacteria stop multiplying and your immune system clears the rest. They don’t work on viruses.
Body
How does the human eye work?
The cornea and lens bend incoming light into a sharp image on the retina at the back of your eye. Cells there turn the light into signals, and your brain turns those signals into what you see.
Body
How does your sense of balance work?
Deep inside each ear, three fluid-filled loops sense when your head turns, and two small organs sense gravity and movement. Your brain combines their signals with what your eyes and body feel to keep you steady.
