Female perineum

Posterior labial nerves and vessels

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Image #157-2
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Female perineum
Posterior labial nerves and vessels
The deep perineal fascia has been resected from the left half of the dissection. The major branches of the posterior labial nerves and vessels (12) that lay deep to this layer have been freed of their connective tissue investments. Still remaining in place is a layer of fascia (14) that covers the ischiocavernosus, bulbospongiosus and superficial transverse perineal muscles.
1 . Prepuce of clitoris
2 . Labium minus
3 . Labium majus (cut off)
4 . Upper pointer: Vaginal opening Lower pointer: Deep perineal fascia
5 . Ischial tuberosity
6 . Gluteus maximus muscle
7 . External anal sphincter muscle
8 . Anus
9 . Suspensory ligament of clitoris
10 . Gracilis muscle
11 . Superficial perineal fascia (cut edge)
12 . posterior labial nerves (accompanied by posterior labial arteries)
13 . Deep perineal fascia (cut edge)
14 . Deep layer of deep perineal fascia
15 . Levator ani muscle