Neurosecretory systems, Biology

Assignment Help:

Neurosecretory Systems

Almost all groups of multicellular animals have been investigated to find out if neurosecretory cells are present in them. Such investigations have shown that these cells are located either in brain or ganglia.

2294_Neurosecretory Systems.png

  Figure:  Brain neurosecretory cell -corpus cardiacum -corpus allatum system of a generalized Insect.

However, discrete neurosecretory systems made of neurosecretory cells with their axonal tracts and axon termini forming neurohemal organs have been found among non-chordates only in certain groups. These systems are best known among arthropods, especially in insects and crustaceans.


Related Discussions:- Neurosecretory systems

Endosperm with lateral haustoria, Endosperm with Lateral Haustoria In...

Endosperm with Lateral Haustoria In Monochoria, in which the endosperm development is of helobial type, the haustorium is neither chalazal nor micropylar but lateral. The cha

Name the hormones produced by the testes, Name the hormones produced by ...

Name the hormones produced by (a) the testes, (b) the ovaries.   (a) The testes produce testosterone. (b) The ovaries produce oestrogen and progesterone.

Platyhelminthes, tell me the general characters of monopisthocotylea

tell me the general characters of monopisthocotylea

What is rate of photosynthesis in c3 plants, What would happen to the rate ...

What would happen to the rate of photosynthesis in C3 plants if the CO2 concentration level almost doubles from its present level in the atmosphere?

Process of behaviour change, 1. Awareness - First people become aware of a...

1. Awareness - First people become aware of a problem. 2. Acquire Knowledge and skills - Next, they gather knowledge and learn new skills. 3. Motivation - At the next stag

Agro-industrial -cereal and gram by-products, Cereal and Gram By-Products ...

Cereal and Gram By-Products Agro-processing is now regarded as the sun rise sector in view of its large potential in maintaining the nutritional quality of processed feed resource

Define some usual doubts of children related to food, Define some Usual Dou...

Define some Usual Doubts of Children related to Food? Before embarking yourself to go through this unit, here is an activity for you to perform, Talk to 2-3 school' boys and gi

Define uses isolated soybean proteins, Define uses isolated soybean protein...

Define uses isolated soybean proteins? Partially hydrolysed soy proteins possess good foam stabilization properties and can be used as whipping agents in combination with egg a

Describe the biological parameters of living organisms, Describe the Biolog...

Describe the Biological parameters of living organisms Biological parameters which include living organisms constitute an important component of soil.  Even though organisms fo

Explain dextran, Dextran Dextran is a high molecular  weight polysaccha...

Dextran Dextran is a high molecular  weight polysaccharide having  α1→ 6,  α1→ 3 linked glucans. It is produced by the bacterial fermentation of sucrose by  Leuconostoc dextran

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