The development of the seminal vesicles in man
Year: 1918
Type: article
Abstract: In reviewing the literature on the embryology of the seminal vesicles one finds a surprising lack of any detailed or accurate study covering their course of development in foetal life.There are many references to the time of their initial appearance, but from that time until birth, or in fact until adult life, there are very few observations.The work of Pallin ('01) on the development of the prostate and seminal vesicles is unquestionably the most complete.Kolliker ('79) stated that the vesicles have their beginning in the third month of foetal life as offshoots from the proximal portion of the Wolffian ducts.Mihalkovics ('85) found that at about the fifth month of intra-uterine life the evaginations from the deferent ducts, going to form the seminal vesicles, proceeded first in a horizontal, then in an upward curving direction.Minot ('92) stated that the vesicles do not attain a length of 1 nun.until about the fifth month of foetal life.0. Schultz ('97) wrote that they appear at the end of the third month as outgrowths of the lower part of the Wolffian ducts, and are then simple, hollow, pear-shaped appendages about 1 mm.long.Heisler ('99), in his text-book, stated that from the caudal end of the Wolffian duct there arises a pouch-like evagination, which later becomes the seminal vesicle.Pallin ('Ol), reporting his studies on the development of the prostate and seminal vesicles in man and in the lower aniwls, found that they appear at the third month of foetal life.They are noted first as longitudinal folds con-395
Source: American Journal of Anatomy
Author: Ernest M. Watson
Institutions: Johns Hopkins University, Johns Hopkins Hospital
Language: English
Subfield: Rheumatology
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2054837057