🧍 Human body
Skin layers
Epidermis, dermis, fat, hair, sweat glands and blood vessels.
⚕️ Simplified model for learning. It is not a medical or diagnostic tool.
💬 Questions and answers
1What am I looking at?
Answer: A block of skin cut to show its layers, a hair, a sweat gland and blood vessels.
2What are its parts? (click a part to identify it)
Answer: Epidermis, dermis, fat layer, hair and follicle, sweat gland and blood vessels.
3How does it work?
Answer: The epidermis forms a waterproof barrier. The dermis holds nerves, glands and vessels; sweat cools us as it evaporates and vessels widen or narrow to control heat loss.
4Why is it important?
Answer: Skin protects against germs and injury, senses touch and keeps body temperature steady.
5What happens if I change something? (use the sliders)
Answer: Separate the layers to see what lies under the surface.
6What should I remember for the exam?
Answer: Skin is the largest organ. Melanin gives skin its colour. Sweating and widening of blood vessels cool the body; shivering and goosebumps keep it warm.