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Perineal Vein
Cardiovascular System

Perineal Vein

Vena perinei

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Quick Facts

Origin: Bulb of penis (males) or vestibule of vagina (females).

Course: Travels inferiorly through the pudendal canal to drain into internal pudendal vein.

Tributaries: Posterior scrotal vein and vein of the bulb of penis (males) or posterior labial vein and deep vein of the clitoris (females).

Drainage: Superficial perineal muscles and scrotum (males) or bulb of vestibule (females).

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Origin

The perineal vein originates in the bulb of penis (males) or bulb of vestibules (females).

Course

From its origin, the perineal vein travels from the superficial space and runs backwards between bulbospongiosus and ischiocavernosus muscles. It pierces the perineal membrane and runs through the pudendal canal to drain into the internal pudendal vein.

Tributaries

In males, the perineal vein receives tributaries from the posterior scrotal vein and the vein of the bulb of penis.

In females, the perineal vein receives tributaries from the posterior labial vein and the deep vein of the clitoris (Netter, 2011).

Structures Drained

The perineal vein drains the skin of the perineum and external genitalia. During sexual arousal, the perineal vein is compressed by the bulbospongiosus muscles, pushing blood into the body of the penis (males) or clitoris (females) to aid in erection (Moore, Dalley and Agur, 2013).

References

Moore, K. L., Dalley, A. F. and Agur, A. M. R. (2013) Clinically Oriented Anatomy. Clinically Oriented Anatomy 7th edn.: Wolters Kluwer Health/Lippincott Williams & Wilkins.

Netter, F. H. (2011) Atlas of Human Anatomy. Netter Basic Science Series: Saunders/Elsevier.

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