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Räumliche Anordnung und Mikrovaskularisation der Ductuli efferentes testis vom Bullen (Bos taurus)
Author(s) -
Amselgruber W.,
Sinowatz F.
Publication year - 1991
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/j.1439-0264.1991.tb00753.x
Subject(s) - biology , anatomy
Summary Microvascularization of bovine Ductuli efferentes testis of the Bull ( Bos taurus ) The arrangement, origin, course and opening of the ductuli efferentes testis of the bull ( Bos taurus ) were visualized using scanning electron microscopy. The corresponding capillary structure was also described and documented with the help of corrosive microanatomical casts. The number of the ductuli efferentes testis of the bull varies narrowly between 12 to 13. Ductuli removed from the surrounding tissue have a length of up to 78 cm. The duct system is composed of linear as well as tortuous parts, permitting division into three distinct segments. Blind ending ductules are very short. We therefore do not see these structures as being associated with spermiostasis. The capillary density as well as the capillary architecture show regional peculiarities. All segments of the ductuli efferentes testis are composed of capillaries of the continuous type. The findings indicate that the increased capillary density in the voluminous initial section of the ductuli efferentes testis represents the basis for resorptive as well as secretory activities in the bull.