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. Author manuscript; available in PMC: 2009 May 12.
Published in final edited form as: Am J Obstet Gynecol. 2007 Jul;197(1):52.e1–52.e7. doi: 10.1016/j.ajog.2007.04.026

Fig. 5. Effect of pelvic floor contraction on AP and lateral dimension of the vaginal HPZ.

Fig. 5

These transverse images (in the plane of the puborectalis muscle) of the pelvic floor hiatus were obtained at bag volume of 60 cc. Note that the pelvic floor contraction resulted in characteristics changes in the dimension of the vaginal bag. The AP length of the bag decreased from 1.8 cm at the baseline to 0.9 cm during pelvic floor contraction. The lateral dimension of the bag is not affected by the pelvic floor contraction; 3.2 cm at both rest and with pelvic floor muscle contraction.