🛡️ SKIN: WATERPROOF ARMOUR
PAGE 1 OF 5 · YOUR OUTER SHIELD
ORGAN
SKIN IS AN ORGAN TOO
Skin is your body's largest organ, not just a wrapper. Spread flat, an adult's skin covers about 2 square metres, roughly the size of a small door. It keeps water inside you and blocks many germs from getting in. Nerves in skin let you feel touch, heat, cold, and pain. Blood vessels help control temperature by widening or narrowing. Sweat glands release moisture that cools you when you overheat. Without skin, infection and fluid loss would happen fast.
⚡ DID YOU KNOW?
Skin also helps make vitamin D when sunlight hits it, which supports healthy bones and immunity.
COVER!
WATER
💧 Oils and tightly packed surface cells make skin repel water like a raincoat.
🏊 You still absorb some water in baths, but skin stops most fluid from leaking out.
🏊 You still absorb some water in baths, but skin stops most fluid from leaking out.
FEEL
🖐️ Touch receptors let fingertips sense fine texture, helping you pick up tiny objects.
🔥 Pain receptors warn you to pull away from burns and sharp hazards fast.
🔥 Pain receptors warn you to pull away from burns and sharp hazards fast.