• testes
  • The male genital organs comprise the testes and epididymides, ductus deferentes, seminal vesicles and ejaculatory ducts, prostate, bulbo-urethral glands, and penis (fig. 34-1 ). (dartmouth.edu)
  • In the developing embryo if the testes are developed, it will produce and secrete male sex hormones during late embryonic development and cause the secondary sex organs of the male to develop. (wikipedia.org)
  • The structures are masculinized by secretions of the testes: urogenital sinus genital tubercle urogenital folds cloacal membrane labioscrotal folds The prostate gland derives from the urogenital sinus, and the other embryonic structures differentiate into the external genitalia. (wikipedia.org)
  • At nine weeks, male differentiation of the gonads and the testes is well underway. (wikipedia.org)
  • blackish
  • While a darker pigment is expected to be seen in the genitals, Patel does warn that "unusual blackish darkening could be an early indication for gangrene (Fourier's gangrene), or any thrombus obstructing the end arteries in the area. (medicaldaily.com)
  • species
  • Unlike other butterflies, however (except the unique case of the remarkable Australian skipper butterfly Euschemon rafflesia, whose males possess these structures), the single-spined frenulum and retinaculum are not lost or reduced in males, except in three Macrosoma species where there is no functional wing coupling system. (wikipedia.org)
  • areas
  • Obesity can also produce dark skin in several areas, like the thighs and genitals, due to progressive rubbing of the skin. (medicaldaily.com)
  • long
  • Removal of male pubic hair by waxing is a long-lasting method but can be painful if the man is not used to it or doing it for the first time. (wikipedia.org)
  • birth
  • A male birth control shot may be on the horizon, and may provide competition for another product being tested - the male pill. (medicaldaily.com)
  • It begins with a single fertilized egg and culminates 38 weeks later with birth of a male child. (wikipedia.org)
  • length
  • At maturity, mites are yellowish orange in colour, with females ranging from 0.19-0.26 mm in length with the males slightly smaller at, 0.165-0.180 mm. (wikipedia.org)
  • becomes
  • Prostate cancer is very uncommon in men younger than 45, but becomes more common with advancing age. (wikipedia.org)
  • cause
  • Globally it is the second most common type of cancer and the fifth leading cause of cancer-related death in men. (wikipedia.org)