Question

The hypogastric sheath is a condensation of:

• A. Scarpa's fascia
• B. Colles' fascia
• C. Pelvic fascia
• D. Inferior layer of the urogenital diaphragm

Hint:

It is a deep pelvic condensation carrying vessels to the bladder and uterus.

Answer 1

The Correct Option is C

Step 1: Define the structure. The hypogastric sheath is a layer of connective tissue in the pelvis that runs from the side wall of the pelvis to the pelvic organs and carries vessels and nerves with it.

Step 2: Locate its origin. It is a condensation of the visceral pelvic fascia (endopelvic fascia). It conveys the internal iliac vessels and their branches to the bladder, uterus and rectum, and it splits into laminae around these organs.

Step 3: Eliminate the wrong options. Scarpa's fascia is the deep membranous layer of the superficial fascia of the lower anterior abdominal wall. Colles' fascia is the membranous superficial fascia of the perineum. The inferior layer of the urogenital diaphragm (perineal membrane) lies in the perineum. None of these is the source of the hypogastric sheath.

Step 4: Only the pelvic fascia gives rise to this pelvic visceral condensation.

The answer is C. Pelvic fascia.