Function of adenosine in consciousness, Biology

Assignment Help:

Q. Function of Adenosine in consciousness?

The adenosine plays a major role in inducing sleep. Injections of adenosine promote sleep and decrease wakefulness. Conversely, adenosine receptor antagonists' caffeine and theophylline are widely used as stimulants to induce vigilance and promote wakefulness.

During wakefulness adenosine accumulates in the extracellular space of the basal forebrain. The increase in extracellular adenosine concentration decreases the activity of the wakefulness-promoting cholinergic neurons in the basal forebrain. When the activity of the wakefulness-active cells decreases sufficiently sleep is initiated. During sleep the extracellular adenosine concentrations decrease, and thus the inhibition of the wakefulness-active cells also decreases allowing the initiation of a new wakefulness period.


Related Discussions:- Function of adenosine in consciousness

Metazoa, explain hadzi''s theory with reference to metazoa

explain hadzi''s theory with reference to metazoa

Cyclostomes - regeneration in vertebrates, Cyclostomes - Regeneration in Ve...

Cyclostomes - Regeneration in Vertebrates The larvae of the lampreys between the jawless primitive fishes are able to regenerate their amputated tail. Blastema is made at the

An experiment to determine which seed is best for lawn, Assume that your ya...

Assume that your yard has many tall trees that result in about fifty percent of the yard being shaded and fifty percent of the yard being exposed to full sun. The shaded areas and

Explain adverse effects of stavudine, Explain Adverse effects of Stavudine ...

Explain Adverse effects of Stavudine Fatal lactic acidosis may happen more frequently with stavudine than with other NRTIs. Serum aminotransferase activity may enhance with sta

Exterrral and internal environment, Exterrral and Internal Environment Le...

Exterrral and Internal Environment Let us try to understand the concept of environment with some examples. Can you identify the environment of a single carp fish in the pond? It

Pathogenic bacteria, Pathogenic bacteria Heterotrophic bacteria could ...

Pathogenic bacteria Heterotrophic bacteria could be divided into saprophytes and parasites. Saprophytes normally do not cause any disease and they survive on dead or decaying

How is heart contraction triggered, Q. How is heart contraction triggered? ...

Q. How is heart contraction triggered? Heart contraction is independent from neuronal stimulus although it can be modulated by the autonomous nervous system in the heart there

Gene constructs - transgenic animals, G e n e constructs Designing a...

G e n e constructs Designing and cloning of the gene construct is the fundamental step in the generation of transgenic animals, essentially determining success or failure of

Techniques of closed mitral valvotomy, Techniques: operation is done unde...

Techniques: operation is done under general endo tracheal anaesthesia. Patient is positioned with the left chest tilted up using a sand bag under left chest. Left antero latera

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd