This site is intended for healthcare professionals
General Practice Notebook
Account login | New account
Medical search

physiological responses

FREE subscriptions for doctors and students... click here
You have 3 open access pages.

There are two key physiological mechanisms for increasing heat loss from the body of Man:

  • sweating
  • vasodilatation

Generally, both act in tandem to lower core temperature under the integration of the hypothalamus. However, there may be situations when either mechanism is inefficient or disordered e.g. high external humidity or anticholinergic drugs for sweating, and the use of alpha-adrenoceptor blocking drugs for vasodilatation.

Decreased heat production is a theoretical means of decreasing temperature. In practice, the metabolic rate is unchanged; the only contribution to decreasing temperature is an inhibition of shivering and non-shivering thermogenesis. This is not as important as sweating and vasodilatation.

Links:

General Practice Notebook
General Practice Notebook
The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions. Copyright 2016 Oxbridge Solutions LtdĀ®. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions LtdĀ® receives funding from advertising but maintains editorial independence. GPnotebook stores small data files on your computer called cookies so that we can recognise you and provide you with the best service. If you do not want to receive cookies please do not use GPnotebook.