07/08/2026
🧬 Human Skin – 3D Anatomy
Human skin is the largest organ of the body, covering approximately 1.5–2 square meters and accounting for about 15% of total body weight. It acts as the body's first line of defense, protecting against injury, harmful microorganisms, UV radiation, and water loss.
The skin is composed of three main layers:
🔹 Epidermis: The outermost protective layer made primarily of keratinocytes. It contains melanocytes, which produce melanin to determine skin color and protect against ultraviolet (UV) radiation.
🔹 Dermis: The middle layer rich in collagen and elastin fibers, providing strength and flexibility. It contains hair follicles, sweat glands, sebaceous (oil) glands, blood vessels, nerve endings, and sensory receptors responsible for touch, pain, pressure, and temperature.
🔹 Hypodermis (Subcutaneous Tissue): The deepest layer composed mainly of fat and connective tissue. It cushions internal structures, stores energy, insulates the body, and helps regulate body temperature.
Human skin performs several vital functions, including protection, sensation, temperature regulation, vitamin D synthesis, immune defense, and prevention of dehydration. This intricate 3D view highlights the remarkable organization of the skin and the essential structures that keep the human body healthy and functioning efficiently. Aesthetic Explained
Dr. Kamal Idroos
