+612 9045 4394
 
CHECKOUT
The Development of the Perineum in the Human : A Comprehensive Histological Study with a Special Reference to the Role of the Stromal Components - S. C. J. Van Der Putte

The Development of the Perineum in the Human

A Comprehensive Histological Study with a Special Reference to the Role of the Stromal Components

Paperback

Published: 1st November 2004
Ships: 5 to 9 business days
5 to 9 business days
$293.53
or 4 easy payments of $73.38 with Learn more

References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Subject Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 1 Introduction The developmental steps which lead to the formation of the human perineum seem firmly established (Arey 1965; Hamilton and Mossman1972; Moore and Persaud 1998; Wartenberg 1993; Sadler 1995; Larsen 1997). They form the base for the evaluation of the pathogenesis of a great variety of complicated and often serious malformations which occur in this region. This concept has, however, been challenged by the results of an investigation into the n- mal and abnormal development of the anorectum in pig (van der Putte and Neeteson 1983, 1984; van der Putte 1986). Observations revealed that at least in pig, a major element in current ideas about the early development of the perineum, namely the process by which the original simple cloaca is sub- vided into a urogenital and anal part is incorrect, while additional obser- tions strongly suggested that the same may be true for ideas about female and male sexual transformation. A preliminary investigation in human - bryos gave similar indications (van der Putte 1986). The data supported e- lier critical findings (Politzer 1931, 1932; Wijnen 1964; Ludwig 1965) which have apparently been ignored, possibly because they seemed to hinder the understanding of the pathogenesis of congenital malformations such as - perforate anus and hypospadias.

Introduction
Materials and Methods
Development of the Sexually Indifferent Perineum
Introduction
Observations
Pre-cloacal perineum
Cloacal perineum
Post-cloacal perineum
Discussion
Cloacal eminence
Cloaca and allantois; partition of the mesonephric ducts and ureters
Division of the cloaca
Urogenital sinus
Anal canal
Perineal striated musculature
Vascular system
Labioscrotal swellings
Development of the Female Perineum
Introduction
Observations
Vagina
Transformation of the urogenital sinus into the urethra and vestibulum
Urethra
Vestibulum
Erectile structures
Fascial structures
Labia majora
Anal canal
Perineal striated musculature
External perineum
Discussion
Vagina
Transformation of the urogenital sinus into the urethra and vestibulum
Urethra
Vestibulum
Labia majora
Anal canal
External perineum
Development of the Male Perineum
Introduction
Observations
Urethra
Erectile structures
Fascial tissues
Perineal septum
Penis, prepuce, preputial sac and frenulum
Scrotum
Anal canal
Perineal striated musculature
External perineum
Discussion
Urethra
Erectile structures
Perineal raphe, septum, body and fasciae
Penis, prepuce, preputial sac and frenulum
Scrotum
Summary
References
Index
Table of Contents provided by Publisher. All Rights Reserved.

ISBN: 9783540210399
ISBN-10: 3540210393
Series: Advances in Anatomy, Embryology and Cell Biology
Audience: General
Format: Paperback
Language: English
Number Of Pages: 136
Published: 1st November 2004
Publisher: Springer-Verlag Berlin and Heidelberg Gmbh & Co. Kg
Country of Publication: DE
Dimensions (cm): 23.62 x 15.49  x 0.51
Weight (kg): 0.3