Explain neurochemical process, Biology

Assignment Help:

Alertness and sleep are dependent on the activity of the brain as a whole, although different levels of consciousness are determined primarily by areas of the brain stem. A key anatomical structure in the regulation of waking and sleeping, (and thus consciousness), is the reticular formation, located in the brain stem. It is a highly complex interlacing network of fiber bundles. Neuro chemically, there is a great diversity of neurotransmitters present: serotonin, mainly from the mid-line raphe nuclei; noradrenaline from the locus coeruleus; acetylcholine from pedunculopontine nuclei with also peptidergic and dopaminergic components.

The alterations in the activity of these neurotransmitters either triggers or accompany the onset of natural sleep and distinguish slow wave or non-REM from REM sleep thus providing one of the most compelling arguments in favour of chemical neurotransmission being specifically involved in mechanisms of conscious awareness.

Pharmacological manipulations of these neurotransmitters provide evidence for the role of neuro chemical processes in consciousness. In this context it is important to understand that there are two categories of drugs used to vary the level of neurotransmitters.


Related Discussions:- Explain neurochemical process

Problem with role of lymphatic system, Normal 0 false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Definition of osseointegration in microscopic biology, Q. Definition of Oss...

Q. Definition of Osseointegration in microscopic biology? From a view point of macro and microscopic biology and medicine. Osseointegration of a fixture in bone is defined as t

Determine possible polypeptides, a) The image above is part of a DNA sequen...

a) The image above is part of a DNA sequencing gel. Assuming this is the DNA coding strand and you are reading 5' -> 3' what are ALL the possible polypeptides this sequence cou

Illustrate the applications of vitamin B6, Illustrate the Applications of v...

Illustrate the Applications of vitamin B 6 The heating processes employed in the industry for the sterilization of milk based formulations will greatly reduce their vitamin B

Explain sialography, Question 1 Explain Sialography? How will you perfo...

Question 1 Explain Sialography? How will you perform the same? Question 2 How will you set up your radiology department to take up the IVU studies? Question 3 D

Mitosis and meiosis, briefly desribe the eggs and follicles in rabbit

briefly desribe the eggs and follicles in rabbit

Define the food processing, Define the Food Processing? We are all awar...

Define the Food Processing? We are all aware that delay in the use of fresh foods, alters its freshness, palatability and nutritive value. Therefore, it becomes very important

Plant physiology, detail notes on seed dormancy and seed germination

detail notes on seed dormancy and seed germination

What is the external rigid carapace of arthropods called, What is the exter...

What is the external rigid carapace of arthropods called? Of which substance is it made? Which type of organic molecule is that substance? The external carapace of arthropods i

Why is iodine important for human beings, Why is iodine important for human...

Why is iodine important for human beings? Iodine is a fundamental chemical element for the proper functioning of the thyroid since it is part of the hormones produced by this g

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