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Surface roughness resulting from abrasion wear on a spindle. Abrasion is the process of scuffing, scratching, wearing down, marring, or rubbing away. It can be intentionally imposed in a controlled process using an abrasive. Abrasion can be an undesirable effect of exposure to normal use or exposure to the elements.
Abrasions on elbow and lower arm. The elbow wound will produce a permanent scar. A first-degree abrasion involves only epidermal injury. A second-degree abrasion involves the epidermis as well as the dermis and may bleed slightly. A third-degree abrasion involves damage to the subcutaneous layer and the skin and is often called an avulsion.
A wound is any disruption of or damage to living tissue, such as skin, mucous membranes, or organs. [1] [2] Wounds can either be the sudden result of direct trauma (mechanical, thermal, chemical), or can develop slowly over time due to underlying disease processes such as diabetes mellitus, venous/arterial insufficiency, or immunologic disease. [3]
Timing is important to wound healing. Critically, the timing of wound re-epithelialization can decide the outcome of the healing. [11] If the epithelization of tissue over a denuded area is slow, a scar will form over many weeks, or months; [12] [13] If the epithelization of a wounded area is fast, the healing will result in regeneration.
Abrasion (dental), the loss of tooth structure by mechanical forces from a foreign element; Abrasion (medical), a wound consisting of superficial damage to the skin; Abrasion (mechanical), the process of scuffing, scratching, wearing down, marring, or rubbing away; Abrasion (geology), mechanical scraping of a surface by friction between moving ...
Corneal ulcers are a common human eye disease. [2] They are caused by trauma, particularly with vegetable matter, as well as chemical injury, contact lenses and infections. . Other eye conditions can cause corneal ulcers, such as entropion, distichiasis, corneal dystrophy, and keratoconjunctivitis sicca (dry ey
Friction burn caused by a treadmill. Example of a third-degree friction burn. A friction burn is a form of abrasion caused by the friction of skin rubbing against a surface. A friction burn may also be referred to as skinning, chafing, or a term named for the surface causing the burn such as rope burn, carpet burn or rug burn.
Corneal abrasion is a scratch to the surface of the cornea of the eye. [3] Symptoms include pain, redness, light sensitivity, and a feeling like a foreign body is in the eye. [1] Most people recover completely within three days. [1] Most cases are due to minor trauma to the eye such as that which can occur with contact lens use or from ...