Male Genital Tract

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Male Genital Tract
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Color Code (page 491)

• Testes B Seminal Ves E
• Epididymis C Prostate i
• Vas Deferens D Bulbourthral H
• Ejaculatory Duct F
• Urethra G
• Prepus (Prepuce) Around glans
• Glans Labeled

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Testes

• Primary male reproductive organ
• Sperm producing organ.

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Epididymis

• Coiled Tubules
• Seminiferous Tubules ? Epididymis ? Vas Deferens

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Vas Deferens

• Tube that connects
• Epididymis ? Vas Deferens ? Urethra

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• What happens with a vasectomy?
• A vasectomy can be performed under local
  anaesthetic. During a vasectomy, the scrotum is
  cut on both sides and the vas deferens drawn out.
  The exact surgical procedure varies slightly but
  usually involves the vas deferens being cut and a
  small piece removed, with the ends being tied and
  /or sealed using heat.

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Ejaculatory Duct

• Where sperm enters the urethra.
• Where Vas Deferens and duct of the Seminal
  Vesicles combine

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Urethra

• Tube leaving the body
• Bladder ? Outside

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• Case report
• A 66-year-old white man presented to a local
  emergency department with fever and severe
  dysuria. He was admitted for antibiotic treatment
  of urosepsis. CT was performed and identified a
  tubular metallic object in the patients urethra.
  After discharge from the hospital, the patient
  was referred for definitive urologic evaluation
  of this finding.

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Penis

• Cylindrical Organ to move semen and Urine through
  the urethra.

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Prepus (Prepuce)

• Covering of the Glans. (Foreskin)

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Circumcision

• Removal of the prepuce.

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Glans

• Sensory center of the penis.

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Seminal Fluid (Semen)

• Male reproductive fluid
• Sperm
• Fluids secreted by glands
• Sugar
• 2-to-5 mls secreted per ejaculation
• Average 120 million sperm per milliliter

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• http//www.zoo.ox.ac.uk/egi/research/spermcomp.htm
  

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• Gland Approximate Description
• testes 2-51 Approximately 200- to 500-million
  spermatozoa (also called sperm or spermatozoans),
  produced in the testes, are released per
  ejaculation.
• seminal vesicle 65-75 amino acids, citrate,
  enzymes, flavins, fructose (the main energy
  source of sperm cells, which rely entirely on
  sugars from the seminal plasma for energy),
  phosphorylcholine, prostaglandins (involved in
  suppressing an immune response by the female
  against the foreign semen), proteins, vitamin C
• prostate 25-30 acid phosphatase, citric acid,
  fibrinolysin, prostate specific antigen,
  proteolytic enzymes, zinc
• bulbourethral glands lt 1 galactose, mucus
  (serve to increase the mobility of sperm cells in
  the vagina and cervix by creating a less viscous
  channel for the sperm cells to swim through

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Seminal Vesicle

• Connect to the vas deferens and release
• Fructose
• Prostaglandins
• Suppress and help female contractions

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Prostate Gland

• Chestnut shaped gland posterior to the bladder.
• Produces a milky buffer that empties into the
  urethra.

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• http//kidney.niddk.nih.gov/kudiseases/pubs/prosta
  teenlargement/gland
• http//www.roboticurology.com/Media/prostate_video
  s.htm
• http//www.mdanderson.org/diseases/prostate/displa
  y.cfm?id52b3743f-3edd-47d7-8c0e69f0374fecb9metho
  ddisplayfull

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Bulbourthral Gland

• Cowpers Gland
• When stimulated, secrete natural lubricant to
  aide in intercourse.

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