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How is the nervous system of nematodes organized? Where are the neural chords located in their body?
Roundworms have a ganglial nervous system with an anterior neural ring showing (evolutionarily) a primitive cephalization.
Nematodes have two major longitudinal ganglial chords that extend one dorsally and the other ventrally under the epidermis. There might also be nerves lateral to these major chords. The nervous system of a Caenorhabditis elegans, free-living nematode, has been well-studied in neurophysiological research and presents 302 neurons.
The nematode C. Elegans was the organism used in the research on the genetic regulation of organogenesis and apoptosis whose researchers won the Nobel prize of Medicine in 2002 (Brenner, Horvitz and Sulston).
Associated nerves and vessels The Anterior superior alveolar, Infraorbital, and Posterior superior alveolar nerves and arteries provide both the innervation and blood supply to
Results of CABG: In most centres where this operation is routinely conducted the mortality is 1-2 per cent. In high-risk group of patients this may go up to 5 to 10 per cent.
Explain Prophylaxis with antimicrobial Prophylaxis with antimicrobials has decreased the incidence of surgical site infection after head and neck operations that involve an inc
Residual Soils Residual soils are formed at the same site where the weathering of the parent rock has taken place or soils formed in situ from the underlying rocks. These are a
Air pollution affects both living and non-living matter. The effects can be classified as.
What are the major natural plant hormones and what are their respective effects? The major natural plant hormones and their respective functions are the following- Auxins that
Q. Explain about Myocardial Infarction? It is an initial acute phase of cardiovascular disease caused by the blockage of a coronary artery supplying blood to the. Heart shows t
Simple sugars are monosaccharides consisting of a single polyhydroxy aldehyde or ketone unit. Their general formula is (CH 2 0) n (n=3 to 7).
describe and compare reproduction in all the kingdoms except kingdom animalia
What is the menstrual cycle? The menstrual cycle is the periodic succession of interactions among hormones and the organs of the female reproductive system that, after the star
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