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!
Giant Nerve Fibres
We now know that giant nerve fibres take place in the central nervous system of many polychaetes, oligochaetes, insects cephalopod etc. They are broader and longer as compared to the other, ordinary nerve fibres which are about 2 μm or so only in diameter. In the squid, they might attain a diameter of 700 μm or even more. Their size makes them ideal material for electrophysiological studies, like recording electrodes can be inserted inside the axons and action potentials measured. They are of immense benefit to the animal because, with the increase in diameter of the axon, resistance for propagation of action potential is decreased, while velocity of propagation is increased. They conduct for longer distances with fewer or no synapses that also further facilitate conduction. On the whole they are pre-eminently suited for rapid conduction. These Fibres are included in escape reactions of the animal. The squid for instance is rapidly propelled in water by expelling the water within the mantle cavity by fast and simultaneous contraction of the muscles of the mantle innervated by the giant fibres by using the principle of jet propulsion. The animal can escape from its enemies through this method within a fraction of a second.
Define Risk management Risk management is defined for the purposes of the Codex Alimentations Commission as "the process, distinct from risk assessment, of weighing polic
Q. How are antivenoms produced? Why are antivenoms an example of passive immunization? Antivenoms are obtained by the following process: the venom (antigen) is inoculated into
what are intergenic interactions ? please explain with example of cross breeding. and how we calculate the phenotype and genotype. explain epistasis, duplicate genes, supplementary
Define intracellular Fluid or the water within the cells? The intracellular Fluid or the water within the cells makes up about 40-4596 of the total body weight. Because the bod
C a ttle and buffalo diseases Rinderpest: Rinderpest is the most destructive of the virus diseases of cloven-footed animals, viz. cattle, buffaloes, sheep, goats, pigs and
name the blood vessel which bring waste product to kidney
Progress on these biological issues needs both that more mathematics and statistics be brought to bear on them and that new mathematical and statistical tools be prepared. All the
Define the effect of Zinc Deficiency? Zinc deficiency was identified for the first time in 1940 when malnourished Chinese patients were found to have low concentrations of zinc
Q. How are the three major arthropod classes characterized according to the number of limbs? Most crustaceans have five pairs of limbs. Arachnids present four pairs and Insects
Q What is the function of the skin in humans? The skin is the external covering of the body. In humans its major functions are protection and perception of information from the
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