The integumentary system is the organ system that defends the body from numerous types of damage, such as loss of water or abrasion from exterior. The system includes the skin and its appendages (including hair, scales, feathers, hooves, and nails). The integumentary system has a various range of functions; it may serve to waterproof, cushion, and protect the deeper tissues, release wastes, and regulate temperature, and is the attachment site for sensory receptors to perceive pain, sensation, pressure, and temperature. In most land-dwelling vertebrates with significant exposure to sunlight, the integumentary system also offers for vitamin D synthesis.
- Track 1-1 Defensive mechanism of Skin
- Track 2-2 Thermoregulation by muscles
- Track 3-3 Diseases in integumentary system
- Track 4-4 Acupuncture