
	3D Medical Animations Close This information is provided by an independent source. Merck & Co. does not endorse and is not responsible for the accuracy of the content, or for the practices or standards of non-Merck sources. This information provided is not intended to be a substitute for professional medical advice. A licensed healthcare professional should be consulted for diagnosis and treatment of any and all medical conditions. The manufacturer of a product generally has the most complete information about that product. How to use How to use The world's largest library of 3D medical animations developed and copyrighted by Blausen Medical Communications. The Human Atlas figures rotating model, labeled slides, and printable text in addition to animated videos. Shows a video of the selected health topic. Controls play, pause, and restart of the video. Shows a summary of the selected health topic. Controls to scroll the text. Shows a 3 D model of the video. Controls to rotate the model. Shows slides from the video. Controls to change slides.

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This information is provided by an independent source. Merck & Co., Inc. is not responsible for this content. Please discuss any and all treatment options with your healthcare professional. The manufacturer of a product generally has the most complete information about that product.

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stress (stres) forcibly exerted influence; pressure.
in dentistry, the pressure of the upper teeth against the lower.
a state of physiological or psychological strain caused by adverse stimuli (physical, mental, or emotional, internal or external), that tend to disturb the functioning of an organism and which the organism naturally desires to avoid. Stress reactions are elicited, but if they are inappropriate or inadequate they may lead to disease states.
a stimulus that causes such a state or stress reaction.

cold stress hypothermia.

heat stress the complications seen when persons undergo muscular exertion in conditions of excessive heat, such as when sweating does not cool off the body enough, or when heavy sweating depletes the body's supply of fluids and electrolytes. It may lead to heat exhaustion, heat cramps, and other conditions.

oxidative stress any of various pathological changes seen in living organisms in response to excessive levels of cytotoxic oxidants and free radicals in the environment.

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