Male Reproductive System Anatomy

Testicle (Testes)

• Oval shape, approximately 5cm long and 3cm in diameter
• The tunica albuginea creates septa, dividing the testis into lobules (around 250)
• Each lobule contains 3-4 coiled seminiferous tubules
• Seminiferous tubules converge to form rete testis, which transport sperm to the epididymis
• Interstitial cells (Leydig cells) produce male sex hormones and are located between the seminiferous tubules.

Epididymis

• A long tube (about 6 meters) along the superior and posterior margins of the testes
• Complete sperm maturation occurs, making them fertile
• Mature sperm are stored in the epididymis' lower portion (tail).

Spermatic Cord

• Contains structures connecting the testes to the pelvic cavity
• Components: Vas Deferens, nerves, and blood vessels

Duct System of the Male Reproductive System

• Sperm travel through a series of ducts to reach the exterior of the body.
• These ducts include: epididymis, ductus deferens, ejaculatory duct, and urethra.

Ductus Deferens (Vas Deferens)

• A fibromuscular tube, continuous with the epididymis

Ejaculatory Duct

• Passes through the prostate gland and empties into the urethra

Urethra

• Extends from the urinary bladder to the external urethral opening at the tip of the penis
• Serves as a passageway for both sperm/fluids from the reproductive system and urine from the urinary system.

Accessory Glands of the Male Reproductive System

Seminal Vesicle

• Located on the posterior wall of the bladder
• Secretes 60% of the semen volume
• Seminal fluids contain fructose, which provides energy for sperm.

Explore the intricate details of the male reproductive system, including the structure and function of the testicles, epididymis, spermatic cord, and duct system. This quiz covers essential anatomical features and highlight key processes involved in sperm maturation and transport.