Regulatory mechanisms, Biology

Regulatory Mechanisms

The immediate response to acute temperature chance is mediated through the central nervous system. The physiological thermostat has been located in the hypothalamus of the mammal and the spinal cord of the bird. These are the centres of reflex action and are activated by the temperature receptors of the skin or mucous membranes or directly through the changes in the temperature of the hypothlamus (or the blood circulating through it).

The physiological thermostat through the efferent nerve fibres stimulate the muscles for panting and shivering and through the autonomic system it regulates the cutaneous blood vessels, the sweat glands and so on. In some of the amniotes, the pineal and parapineal organs influence thermoregulatory behaviour and physiology. Cardiovascular and cutaneous responses are acute reactions to temperature change. If the exposure is more prolonged, the endocrine system enters the picture and the metabolism is altered particularly by way of the thyroid and adrenal glands.

Posted Date: 1/16/2013 6:04:59 AM | Location : United States







Related Discussions:- Regulatory mechanisms, Assignment Help, Ask Question on Regulatory mechanisms, Get Answer, Expert's Help, Regulatory mechanisms Discussions

Write discussion on Regulatory mechanisms
Your posts are moderated
Related Questions
What is Hazard Identification Hazard  Identification :  The  identification  of  known  or potential  health effects associated with  a  certain  agent.

how does autophagy help in converting a tadpole larva into an adult amphibian

Upwelling zones of high biological productivity are found along the western coasts of the major continents. What causes this upwelling? a- cold currents moving from the equator tow

Define some features of Penicillium? The identifying features of Penicillium are: 1. Mycelium consists of colourless, septate and branched hyphae, some of which grow inside

Explain about the Solar Dryers? There are so many different designs for solar dryers, these range from simple convection dryers, cabinet dryers, shelf dryers to more complicate

This valve has the same basic features as  of the Tricuspid Valve. It has an anterior and a posterior cusp. The anterior cusp is larger and is attached on the upper right part of t

Which of the processes results in the most ATP production within a cell?



Q. Explain about Oxidation reduction potential? The tendency of a substrate to accept or donate electrons is termed its redox potential (Eh). When a substrate loses electrons,