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Encyclopedia > Lateral horn
Lateral horn
A spinal nerve with its anterior and posterior roots. (Lateral column labeled at top.)
Transverse section of the medulla spinalis in the mid-thoracic region. (Lateral column labeled at center right.)
Latin cornu laterale medullae spinalis
Gray's subject #185 753
MeSH [1]
Dorlands/Elsevier c_55/12259818

In the thoracic region, the postero-lateral part of the anterior column projects lateralward as a triangular field, which is named the lateral column (lateral cornu, lateral horn). It has been suggested that History of the Latin language be merged into this article or section. ... Embryology is the branch of developmental biology that studies embryos and their development. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Elseviers logo Elsevier, the worlds largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. ... Diagram of a tsetse fly, showing the head, thorax and abdomen The thorax is a division of an animals body, that lies between the head and the abdomen. ...

Nerve Cells in the Lateral Column

These form a column which is best marked where the lateral gray column is differentiated, viz., in the thoracic region; but it can be traced throughout the entire length of the medulla spinalis in the form of groups of small cells which are situated in the anterior part of the formatio reticularis. The spinal cord is a part of the vertebrate nervous system that is enclosed in and protected by the vertebral column (it passes through the spinal canal). ...

In the upper part of the cervical region and lower part of the medulla oblongata as well as in the third and fourth sacral segments this column is again differentiated. The medulla oblongata is the lower portion of the brainstem. ...

In the medulla it is known as the lateral nucleus.

The cells of this column are fusiform or star-shaped, and of a medium size: the axons of some of them pass into the anterior nerve roots, by which they are carried to the sympathetic nerves: they constitute the white rami and are sympathetic or visceral efferent fibers; they are also known as preganglionic fibers of the sympathetic system; the axons of others pass into the anterior and lateral funiculi, where they become longitudinal. The sympathetic nervous system (SNS) is one half of the autonomic nervous system; the parasympathetic nervous system (PNS) is the other. ... The word sympathetic means different things in different contexts. ...

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...

  Results from FactBites:
MedFriendly.com: Lateral ventricles (1084 words)
The anterior horns of the lateral ventricle are separated by two triangular-shaped membranes known as the septum pellucidum.
The bottom of the lateral ventricle is known as the inferior horn of the lateral ventricle.
This is sometimes referred to as the temporal horn of the lateral ventricle because it is in an area of the brain called the temporal lobe.
  More results at FactBites »



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