Stallion Reproductive System

By: K. MatthewsModified 2010 by B. Purswell

What is the function of the male reproductive system?

• Produce sperm and hormones– Testosterone

• Storage and maturation of sperm• Produce semen• Copulatory organ (penis) delivers semen to

female

Components

• Testes• Epididymis• Spermatic cord• Vas Deferens• Accessory Sex Glands• Penis• Sheath

Testes

• Primary organ of reproduction in male• Produce sperm and male sex hormones– Testosterone

• Do not remain inside body cavity– Chriptorchid– In-fertility

Testes

Scrotum

• Aids in temperature control of the testes• Support of the testes• Protection of the testes

Scrotum

Testes/Scrotum

Spermatic Cord

• Contains life-support vessels• Aids in regulating temperature of testes• Supports the testes

Spermatic Cord

Epididymis

• Concentration of spermatozoa (sperm cells)• Storage of spermatozoa• Transport of spermatozoa• Maturation of spermatozoa

Epididymis

Epididymis

Vas Deferens

• Transport of spermatozoa to accessory glands

Accessory Sex Glands

• Vesicular Gland– Contributes fluid, energy substrates, buffers to

semen

• Prostate Gland– Contributes fluid to semen

• Bulbourethral Gland– Flushes urine residue from urethra

Accessory Sex Glands

Urethra

• Transports semen

Glans Penis

• Male organ of copulation

Sheath

• Encloses and protects free end of penis