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Normal and Abnormal Testicular Descent in Some Mammals

  • C. J. G. Wensing
  • B. Colenbrander
  • H. W. M. van Straaten
Part of the Clinics in Andrology book series (CLAN, volume 3)

Abstract

The process of testicular descent has provided a classic problem of developmental anatomy since the time of John Hunter. It also possesses considerable clinical importance since anomalies of testicular position are frequently encountered in man and in several domestic species. In spite of the great attention the subject has received since Hunter’s description of 1762 even recent accounts are still contradictory; the mechanisms involved are not completely understood. Several theories have been put forward to explain the changes in morphology involved in the movement of the testis from its site of origin in the genital ridge to its final resting place in the scrotum. Especially opinions on the role of the gubernaculum testis in the process differ. The results of recent research on the morphology of the process of testicular descent will be summarized. The information is confined to species with a strip-like cremaster muscle (e.g. pigs, dogs, cats, cattle, horses) since the process in species with a sac-shaped cremaster muscle (e.g. rodents), although in principle comparable, is morphologically different. A description of normal as well as of abnormal morphology of testicular descent will be followed by some notes on the regulation of this process.

Keywords

Inguinal Hernia Leydig Cell Inguinal Canal Cremaster Muscle Internal Inguinal Ring 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Martinus Nijhoff Publishers bv, The Hague 1980

Authors and Affiliations

  • C. J. G. Wensing
  • B. Colenbrander
  • H. W. M. van Straaten

There are no affiliations available

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