The fosters 1x20 online dating

For information about the typical structure of the human nervous system, see human brain or peripheral nervous system.This article discusses information pertinent to the study of neuroanatomy.Neuroanatomy is the study of the anatomy and stereotyped organization of nervous systems.In contrast to animals with radial symmetry, whose nervous system consists of a distributed network of cells, animals with bilateral symmetry have segregated, defined nervous systems, and thus we can make much more precise statements about their neuroanatomy.Again in this case, the situation is different for swimming, creeping or quadrupedal (prone) animals than for Man, or other erect species, due to the changed position of the axis.A mid-sagittal plane divides the body and brain into left and right halves; sagittal sections in general are parallel to this median plane, moving along the medial-lateral dimension(see the image above).

This immensely increases the capacity of researchers to distinguish between different cell types (such as neurons and glia) in various regions of the nervous system.In the early 1970s, Sydney Brenner chose it as a model system for studying the way that genes control development, including neuronal development.One advantage of working with this worm is that the nervous system of the hermaphrodite contains exactly 302 neurons, always in the same places, making identical synaptic connections in every worm.The brain is small and simple in some species, such as the nematode worm, where the body plan is quite simple: a tube with a hollow gut cavity running from the mouth to the anus, and a nerve cord with an enlargement (a ganglion) for each body segment, with an especially large ganglion at the front, called the brain.The nematode Caenorhabditis elegans has been studied because of its importance in genetics.

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