Axonal Branching and Recovery of Coordinated Muscle Activity after Transsection of the Facial Nerve in Adult Rats (Advances in Anatomy, Embryology and Cell Biology)

Doychin N. Angelov (Author), Orlando Guntinas-Lichius (Author), Konstantin Wewetzer (Author), W.F. Neiss (Author), Michael Streppel (Author)

Product Details

Paperback: 141 pages
Publisher: ; 1 edition (November 14, 2005)
Language: English
ISBN-10: 3540256547
ISBN-13: 978-3540256540

Book Description

Publication Date: November 14, 2005 | Series: Advances in Anatomy, Embryology and Cell Biology (Book 180)

Facial nerve surgery inevitably leads to partial pareses, abnormally associated movements and pathologically altered reflexes. The reason for this "post-paralytic syndrome" is the misdirected reinnervation of targets, which consists of two major components. First, due to malfunctioning axonal guidance, a muscle gets reinnervated by a "foreign" axon, that has been misrouted along a "wrong" fascicle. Second, the supernumerary collateral branches emerging from all transected axons simultaneously innervate antagonistic muscles and cause severe impairment of their coordinated activity. Since it is hardly possible to influence the first major component and improve the guidance of several thousands axons, the authors concentrated on the second major component and tried to reduce the collateral axonal branching.

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