Vol 59, No 4 (2000)
Original article
Submitted: 2012-02-06
Published online: 2000-08-02
Sex differences in the bony pelvis of the fruit-eating bat, Eidolon helvum
Polycarp U Nwoha
Folia Morphol 2000;59(4):291-295.
Vol 59, No 4 (2000)
ORIGINAL ARTICLES
Submitted: 2012-02-06
Published online: 2000-08-02
Abstract
Investigation into the bony pelvis of the fruit-eating bat, Eidolon helvum, revealed differences in the pelvic dimensions. The pubic joint of the female consists of interpubic ligament that increased in length until puberty. In the juvenile male Eidolon the pubic joint consists of ligament. Ossification of the interpubic ligament in the male is not an adult phenomenon but begins at the juvenile stage. In the adult the distance from the ischial tuberosity to the iliac crest, from the ischial tuberosity to the medial end of the pubis, and the outlet anteroposterior diameter of the pelvis, were significantly higher in the male than in the female. This indicates that the hip bone in the male is longer in both the vertical (height) and transverse (width) measurements than in the female. The dimensions of the adult pelvic inlet and outlet transverse diameters were significantly higher in the female than in the male. This indicates that the female pelvic canal is wider than the male and this is a consequence of the female interpubic ligament.
Abstract
Investigation into the bony pelvis of the fruit-eating bat, Eidolon helvum, revealed differences in the pelvic dimensions. The pubic joint of the female consists of interpubic ligament that increased in length until puberty. In the juvenile male Eidolon the pubic joint consists of ligament. Ossification of the interpubic ligament in the male is not an adult phenomenon but begins at the juvenile stage. In the adult the distance from the ischial tuberosity to the iliac crest, from the ischial tuberosity to the medial end of the pubis, and the outlet anteroposterior diameter of the pelvis, were significantly higher in the male than in the female. This indicates that the hip bone in the male is longer in both the vertical (height) and transverse (width) measurements than in the female. The dimensions of the adult pelvic inlet and outlet transverse diameters were significantly higher in the female than in the male. This indicates that the female pelvic canal is wider than the male and this is a consequence of the female interpubic ligament.
Keywords
key words: interpubic ligament; juvenile; adult; bat
Title
Sex differences in the bony pelvis of the fruit-eating bat, Eidolon helvum
Journal
Folia Morphologica
Issue
Vol 59, No 4 (2000)
Article type
Original article
Pages
291-295
Published online
2000-08-02
Page views
510
Article views/downloads
2169
Bibliographic record
Folia Morphol 2000;59(4):291-295.
Keywords
key words: interpubic ligament
juvenile
adult
bat