Interpubic ligament: elasticity in pregnant free-tailed bat.
The disparity between the size of the bony pelvis of a pregncant free-tailed bat and the single full-term fetus is so great that in order for birth to occur the interpublic ligament has to stretch to more than 15 times its original length. It is a living elastic band that contains an abundance of elastic fibers.
D000818:Animals; D002685:Chiroptera / Q000033:anatomy & histology*; D003094:Collagen; D004547:Elastic Tissue; D005260:Female; D007743:Labor, Obstetric; D008022:Ligaments / Q000033:anatomy & histology*; D011247:Pregnancy; D011270:Pregnancy, Animal; D011631:Pubic Symphysis / Q000033:anatomy & histology*
D003094:Collagen