A reconsideration of the ischiorectal fossa

Ronald P Hammer, M. M. Shrewsbury

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The ischiorectal fossae of one fresh and 47 preserved cadaver specimens were disected to elucidate its fascial boundaries, neurovascular relationships, spatial orientation, and possible functions. Based upon measurements of approximately half of the dissected specimens, a three-dimensional model of the ischiorectal fossa was developed to clarify visually its fascial relationships and orientation within the perineum. Seven fetal specimens were also dissected for comparative purposes. A distinct fascial septum, the lamina terminalis, connecting the medial and lateral walls of the fossa to form its anterior boundary, was consistently found as a dense fibrous component attaching inferiorly to the posterior aspect of the urogenital diaphragm. The functional significance of the ischiorectal fossa in supporting the urogenital diaphragm, in anal activities, and in sparing the compression of the neurovascular supply to the perineum is discussed.

Original languageEnglish (US)
Pages (from-to)681-689
Number of pages9
JournalDiseases of the Colon and Rectum
Volume20
Issue number8
DOIs
StatePublished - Nov 1977
Externally publishedYes

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Perineum
Diaphragm
Cadaver
Hypothalamus

ASJC Scopus subject areas

  • Gastroenterology

Cite this

A reconsideration of the ischiorectal fossa. / Hammer, Ronald P; Shrewsbury, M. M.

In: Diseases of the Colon and Rectum, Vol. 20, No. 8, 11.1977, p. 681-689.

Research output: Contribution to journalArticle

Hammer, Ronald P ; Shrewsbury, M. M. / A reconsideration of the ischiorectal fossa. In: Diseases of the Colon and Rectum. 1977 ; Vol. 20, No. 8. pp. 681-689.
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