Prostate: Lobes And Capsules

Question 1

Lobes

Answer 1

1. Median
2. 2 lateral

Question 2

Median lobe

Answer 2

1. Lies between 2 ejaculatory ducts posterior and urethra anterior
2. Produce small elevation in bladder cavity just behind internal urethral orifice (uvula vesicae)

Question 3

2 lateral lobes

Answer 3

1. Lie on each side of prostatic urethra
2. Anterior: fibromuscular band (isthmus or anterior lobe)
3. Posterior: continuous together behind urethra and below median lobe

Question 4

Capsules

Answer 4

1. True capsule
2. False capsule (prostatic facial sheath)

Question 5

True capsule

Answer 5

Fibrous capsule

Question 6

False capsule

Answer 6

1. Condensation of pelvic fascia around prostate
2. Continuous with:
   - Superior: vesical fascia
   - Posterior: Denonvillier fascia in front of rectum
   - Inferior: superior fascia of urogenital diaphragm
3. In between the 2 capsules lies prostatic venous plexus