THE MOTONEURONAL ORGANIZATION OF THE SPINAL ACCESSORY NUCLEAR COMPLEX by Eva B. Krammer, Martin F. Bach, Lina Martins ( 9783540174592 )

Item Details

Title:

THE MOTONEURONAL ORGANIZATION OF THE SPINAL ACCESSORY NUCLEAR COMPLEX

By:

Eva B. Krammer, Martin F. Bach, Lina Martins

Format:

Paperback

List price:	£76.50
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ISBN 10:

3540174591

ISBN 13:

9783540174592

Publisher:

SPRINGER-VERLAG BERLIN AND HEIDELBERG GMBH & CO. KG

Pub. date:

17 March, 1987

Edition:

1987 ed.

Series:

Advances in Anatomy, Embryology and Cell Biology 103

Pages:

Synopsis:

Though more than 300 years have elapsed since the first description of the peculiar course of the spinal accessory (XI) nerve by Willis (1664), the crucial problems concerning what is known as accessory field of musculature and its innervation are still unsolved and a matter of controversy. Like the bulbar XI, the spinal XI nerve is commonly regarded as originally a branch of the vagus and, therefore, as a cranial nerve (Fiirbringer 1897; Gegenbaur 1898; Lubosch 1899). However, whether this nerve is of special visceral or somatic derivation is still debated. The conventional distinction between these function- ally separate categories of cranial nerves is based largely on two criteria, namely, the position of the cranial nerve nucleus and the embryological derivation of the muscles innervated by this nerve. Unfortunately, little is known about the development of this accessory field of musculature, and the evidence concern- ing the position of the spinal XI nucleus is contradictory.In fact, although the spinal XI nerve is usually regarded as a purely efferent nerve belong- ing to the special visceral efferent group of cranial nerves and innervating muscles derived from the branchial mesoderm, each of these properties has been questioned. Consequently, the classification of the nerve is still unset- tled. Evidence in support of a special visceral origin of the spinal XI nerve is found in the phylogenetic history of the spinal XI nucleus.

Illustrations:

35 black & white illustrations, biography

Publication:

Germany

Imprint:

Springer-Verlag Berlin and Heidelberg GmbH & Co. K

Returns:

Returnable

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