This investigation was supported in whole by Public Health Service Research Grant AM09499, from the National Institute of Arthritis and Metabolic Diseases.
Version of Record online: 27 JAN 2005
Copyright © 1967 Wiley-Liss, Inc.
The Anatomical Record
Volume 157, Issue 3, pages 517–525, March 1967
How to Cite
Bernstein, P. and Crelin, E. S. (1967), Bony pelvic sexual dimorphism in the rat. Anat. Rec., 157: 517–525. doi: 10.1002/ar.1091570311
From a thesis submitted by the senior author to the Faculty of the Yale University School of Medicine in partial fulfillment of the requirement for the M.D. degree.
- Issue online: 27 JAN 2005
- Version of Record online: 27 JAN 2005
Normal pelvic dimorphism is the result of the male pelvis acquiring morphological features during postnatal development that differ from those of the female. The first dimorphic features appear at 32 days of age. At 76 days of age the male pelvis has eleven dimorphic features that constitute the dimorphism of the normal adult. The development of five of the 11 features is dependent on the presence of the testes, whereas, the other six develop independently of the testes. The testes-dependent features develop in males castrated at birth and treated with testosterone. The postnatal development of the female-type pelvis in the normal female is not dependent on the presence of the ovaries.