MALE ACCESSORY ORGAN NOTES

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MALE ACCESSORY ORGAN NOTES
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EPIDIDYMIS

• Site of sperm maturation and storage

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VAS DEFERENS

• Stores sperm for several months and propels them
  toward urethra during ejaculation

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SEMINAL VESICLE

• Secrete alkaline, viscous fluid that makes up
  about 60 of volume of semen

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PROSTATE GLAND

• Surrounds urethra
• Secretes a milky, alkaline fluid that makes up
  about 25 of the semen

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BULBOURETHRAL/ COWPERS GLANDS

• Secrete an alkaline mucus in response to sexual
  stimulation, and lubricate penis for intercourse

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SEMEN

• Mixture of sperm and secretions from accessory
  glands
• Contains 120 million/ ml average
• Ave. volume of ejaculate is about 2- 6 ml.

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• Provides fluid for transport, nutrients, and
  neutralizes acid in male urethra and female vagina

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PENIS

• Conveys urine and semen to outside of body
• Root base of penis,
• body and glans penis (enlarged tip of penis)

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• Body made of three cylindrical masses two
  corpora cavernosa and corpus spongiosum
• fills with blood during erection
• Glans penis enlarged tip of penis

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EJACULATION

• Emission of semen
• Triggered by presence of semen in urethra through
  spinal nerves in sacral portion of cord.