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What happens to your body when you are exposed to temperature extremes?
Wiki User
∙ 12y ago
When the surrounding temperature is higher than body temperature (37 degrees celsius) your blood vessels start to dilate and come closer to the surface of the skin. This is so more blood reaches the surface of your body to allow you to lose heat easily. This is why you appear to go red. Additionally, you sweat to release heat by evaporation.
When the surrounding temperature is below your body temperature you blood vessels will constrict, causing less blood to reach the surface of your body, so less heat is lost in this way. You will also 'shiver' which is the muscles contracting which releases heat energy to warm you up!
Wiki User
∙ 15y ago
Exposure to temperature extremes can lead to symptoms like hypothermia or hyperthermia. Hypothermia occurs when your body loses heat faster than it can produce, leading to shivering, confusion, and in severe cases, organ failure. Hyperthermia occurs when your body overheats, causing symptoms like excessive sweating, dizziness, and in severe cases, heat stroke. Both conditions can be life-threatening if not treated promptly.
Wiki User
∙ 13y agoFor Cold, your body will first reduce the blood flow near the surface of the body.
This thickens the blood, and this is why you want to pee when you get cold, for the excess water is pushed into the bladder.
The next defence is shivering, as an automatic response to trying to generate some heat by exercise. This will be accompanied by 'goose bumps' and the raising of hairs on the arm etc; again an attempt to keep air circulation to a minimum near the skin. (Probably more effective when we had fur!)
Those are some of the early automatic responses to cold.
Beyond this, hypothermia symptoms appear, but these are better studied elsewhere.
For Heat, the first response is to produce a film of sweat. This is most effective when it is a very thin film - when there are just small individual beads. When the skin becomes wet, the rate of heat loss is lowered.
This phase is followed by a desire to minimise exercise, and a conscious recognition of being too hot. One will seek shade or cool places.
A little fluid is helpful, for it helps thin the blood and increase the circulation.
But more fluid than that is not necessary, other than to control thirst and to replace lost fluid.
Beyond this, the body goes to extreme measures to get the skin cool. The circulation will speed up, and the skin will appear a bright pink.
This is hyperthermia and is dangerous, as it is a signal that the automatic systems are no longer enough. Their sweating mechanisms may well stop and the skin be hot and dry! Their electrolyte balance will be impaired.
Put the patient in the shade, and sponge the body surface to aid temperature reduction. If practical, call for assistance.
I have kept away from numbers as these are unlikely to be available in the field.
Wiki User
∙ 12y agoYou will die
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What is a measure of cooling combining temperature and wind speed?
The measure of cooling combining temperature and wind speed is called the wind chill factor. It quantifies how cold it feels to the human body when exposed to a combination of cold temperatures and wind. The higher the wind speed and the lower the temperature, the lower the perceived temperature due to increased heat loss from the body.
What does chill factor mean?
The chill factor, or wind chill, refers to the perceived decrease in air temperature felt by the human body due to the combination of actual air temperature and wind speed. It describes how cold it feels to the human body when exposed to cold, windy conditions.
What are the two types of body temperature?
The two types of body temperature are core body temperature, which is the temperature of the internal organs, and surface body temperature, which is the temperature of the skin and extremities. Core body temperature is typically more stable and tightly regulated than surface body temperature.
What happens when air temperature exceeds body temperature?
When the air temperature exceeds body temperature, the body can no longer efficiently release heat, leading to an increase in body temperature. This can result in heat-related illnesses such as heat exhaustion or heat stroke, where the body's cooling mechanisms become overwhelmed. It is important to stay hydrated, seek shade, and cool down in these conditions.
What happens to the body temperature of an endothermic animal as its environment cools?
The body temperature of an endothermic animal will remain relatively constant as its metabolism generates heat to maintain a stable internal temperature, regardless of changes in the environment's temperature. However, in extreme cold conditions, the animal may need to increase its metabolic rate or seek shelter to prevent excessive heat loss.
What happens to the structure of enzymes after they are exposed to temperatures above the normal body temperature degreees Celsius?
The denature
Why do you only feel hot or cold when the temperature is in the extremes?
Homeostasis. This is a process of the human body that helps regulate the internal temperature. Unless the external temperatures are in extremes, your metabolism will be able to keep a normal temperature (around 98.6 degrees Fahrenheit).
What happens to the human body when exposed to microgravity?
I think that the body can get very sick and explod!
What happens to you if too long in hot tub?
Hyperthermia can set in, which is when your body is exposed to heat for a prolonged period of time, which raises the core temperature of the body. This can cause dizziness, change in blood pressure, and possible fainting.
What is Rate of fall of temperature of the body is directly proportional to?
The rate of fall of temperature of the body is directly proportional to the temperature difference between the body and its surroundings, the surface area of the body exposed, and the thermal conductivity of the material between the body and its surroundings.
What is the difference between hypothermia and hyperthermia?
hyperthermia is when you have an unusually high body temperature and hypothermia is when you have a really cold body tmperature
How does age affect body temperature?
Generally, body temperature tends to decrease with age due to a slowing metabolism. However, in older adults, the body's ability to regulate temperature may be less effective, making them more susceptible to temperature extremes. It's important for older individuals to monitor their body temperature and seek medical attention if they experience any abnormal changes.
Do Bilbies have body coverings and why?
Bilbies have a body covering of fur, as they are mammals (mammals are covered with fur, hair or skin). The fur acts as insulation and helps protect them against extremes of temperature in their environment.
What happens when an object at a high temperature touches an object at lower temperature?
Heat is conducted form the high temperature body to the low temperature body until their temperatures are the same.
What happens when you are near a large body of water?
The temperature increases
What happens to your bodies if you die in space?
If you were to die in space, your body would remain preserved due to the lack of oxygen and bacteria to cause decay. In the vacuum of space, the fluids in your body would vaporize, causing your body to desiccate. Over time, radiation and temperature extremes would eventually break down your remains.
What happens to the body if the temperature remains the same during exercise?
Nothing
