Histology of the Male Reproductive System 1 Flashcards

Name the organs of the male reproductive system in correct anatomical sequence with respect to the passage of sperm, beginning with the testes.

1
Q

What is the tubuli recti?

A

Straight tubules that connect seminiferous tubules to the rete testis

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2
Q

What are the rete testis and what structures exit from here?

A
  • An anastomotic plexus of channels in the mediastinum testis
  • Efferent ductules exit here:
    • star-shaped lumen lined with a pseudostratified epithelium
    • star-shaped appearance is unique in that it is due to alternating patches of columnar and cuboidal cells rather than contraction of the ductules
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3
Q

Describe the process of ejaculation.

A
  • Rapid expulsion of the 3mL of semen from the penis
  • Under control of sympathetic innervation of the ductus deferens that causes emission
  • Emission is followed by contractions of the acessory glands and strong, peristaltic contractions of the bulbospongiosus muscle of the penis
  • First semen to be expelled during ejaculation has the highest concentration fo sperm
    • copious seminal vesicle secretions “push” sperm out
    • ductus deferens is first to contract after lubrication of the urethra by the bulbourethral glands
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4
Q

What is the sequence of contractions during ejaculation?

A
  • Bulbourethral glands
  • Ductus deferens/prostate gland
  • Seminal vesicles
  • Bulbospongiosus muscle of the corpus spongiosum of the penis
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