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Skin and Accessory Organs
A Coggle Diagram about Function of Skin (Protection: Skin cushions and insulates the deeper body organs and protects the body from bumps, scrapes and cuts. Also protects against chemicals and invading microorganisms. The epidermis is waterproof, preventing unnecessary water loss and the cells of the epidermis produce pigment to protect from the harmful effects of the sun., Body Temperature Regultion: Reulate the loss of heat to help control body temperature., Sensory Reception: The skin contains sense organs that are associated with nerve endings. By sensing touch, pressure, temperature, and pain, these receptors keep us aware of conditions at the body surface., Excretion: The skin acts as a miniature excretory system when urea salts, and water are lost through sweat. and Production of Vitamin D: The epidermal cells use UV radiation to synthesize vitamin D, a molecule necessary for absorbing calcium from the digestive tract.), Derivatives of the Epidermis: Appendages and Layers of Skin (Epidermis, Dermis and Hypodermis: Fatty layer that is just deep to the skin. This layer consists of both areolar and adipose connective tissue, but the adipose tissue is normally predominate. Besides storing fat, this layer anchors the skin to the underlying structures (usually muscle), but loosely enough that the skin can still side relatively freely over these structures. This layer is also an insulator. )