Accessory sex organs - Seminal vesicle, prostate gland and cowper's gland

ACCESSORY GENITAL ORGANS
( Seminal vesicle, Prostate, Cowper's gland )

Seminal vesicles

  • Bulls : Two compact organs with lobulated surface present on posterodorsal part of bladder. Ducts open on either side of the opening of ductus deferens at the colliculus seminalis
  • Stallion : They are elongated pyriform sacs consisting of body and neck. Ducts open along with ductus deferens
  • Dog and Cock : Absent

Prostate gland

  • Bull : It has musculo glandular portion (body) present on the dorsal face of the neck of the bladder and pars disseminate in the wall of urethra. Ducts open into the urethra behind the colliculus seminalis in two rows
  • Stallion : It is large and consists of two lobes connected by an isthmus. There are 15 to 20 ducts opening on either side of the opening of the ejaculatory orifice. Pars disseminate is absent and shows median furrow dividing it into two lobes
  • Dog : It is very large and globular in shape. It surrounds the neck of the bladder. Pars disseminate is less extensive. Ducts are numerous
  • Cock : Absent

Cowper’s gland

  • Bull : Two in number, present on either side of the pelvic part of the urethra near ischial arch. Each has a single duct which opens into the urethra
  • Stallion : Larger 6-8 ducts are present
  • Dog and Cock : Absent
Last modified: Thursday, 9 February 2012, 10:22 AM