Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Endocrine Organs
Endocrine organs, as explained earlier are those organs or tissues, which release chemical substances directly into blood stream. Not like exocrine glands they do not have ducts to carry their secretion, and are hence considered ductless glands. Table lists the endocrine glands of the higher invertebrate groups, the secretions they generate and the functions of the secretions. Among non-chordates neurosecretory cells (NSCs) form a significant constituent of the endocrine system.
Table: Endocrine Organs
These are nerve cells specialised for hormone production. Thus they combine neural and endocrine properties. Apart from this, endocrine glands may arise from the nervous system, by complete modification. Corpus cardiacum of insects is one such gland. Several non-chordates have also epithelial endocrine glands derived from embryonic ectoderm, mesoderm or endoderm layers. The optic glands of cephalopod molluscs, androgenic glands and Y-organs of crustaceans, and the corpus allatum and prothoracic glands of insects are some instances. You will be studying these structures and their functions in detail. But previous to we proceed further, let us look into the concept of neurosecretion a little more elaborately, since neurosecretion plays a significant role in regulating metabolic and reproductive functions in non- chordates.
The psychological effects of total edentulism are complex and varied, and range from very minimal to a state of neuroticism. Although complete dentures are able to satisfy the esth
about apiculture
Why Dairy or milk product are important for human body? This first food of mammals is rich in body-building proteins and bone-forming calcium, besides being the only source of
Use of Chlamydia in Pregnancy Doxycycline, other tetracyclines and the flour quinolones generally should not be used during pregnancy. Azithromycin appears to be safe in pregn
What is the phenomenon of the apical dominance in plants? How it can be artificially eliminated? The Apical dominance is the phenomenon by which high (over the positive range l
how nerve signals are transmitted
Why the orange trees are often sprayed with water? Although it is grossly counter-intuitive, whenever citrus groves are in risk of experiencing below-freezing temperatures, the
Q. What is the difference between micronutrients and macro? The classification criterion of nutrients into micronutrients and macro has no relation to the size of the molecul
#question.name any two plants having heterotrophic mode of nutrition .
How is the human foetus expelled from the uterus of its mother: The total time required for the embryonic and foetal development is called gestation period which is usually
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd