Prostate

Question 1

relations of base of prostate

Answer 1

• Continuous with neck of bladder
• pierced by preprostatic urethra

Question 2

relations of apex of prostate

Answer 2

• Rests on pelvic fascia
• junction between prostatic & membranous urethra

Question 3

relations of anterior surface of prostate

Answer 3

• Santorini’s venous plexus
• loose fatty tissue
• symphysis pubis
• Connected to pubis by puboprostatic ligament
• Urethra emerges from it to become membranous urethra

Question 4

Relations of posterior surface of prostate

Answer 4

• prostatic capsule
• denovillier’s fascia
• 2 ejaculatory ducts
• rectum

Question 5

Relations of inferolateral surface of prostate

Answer 5

Anterior fibers of levator Ani

Question 6

Structures within the prostate

Answer 6

• Prostatic urethra
• prostatic utricle between 2 ejaculatory ducts
• 2 ejaculatory ducts

Question 7

Lobes of the prostate

Answer 7

Median Lobe:
* lies between ejaculatory ducts posterior & urethra anterior
* forms elevation called bladder uvula in bladder cavity behind internal urethral orifice

2 Lateral Lobes:
* lies on each side of prostatic urethra
* connected anteriorly by fibromuscular band = Anterior lobe or isthmus

Question 8

covering of the prostate

Answer 8

True capsule : fibrous capsule

False Capsule:
* Condensation of pelvic fascia around prostate
* continuous with Vesical fascia superiorly
* Continuous with denovillier fascia in front of rectum (anteriorly)

Question 9

what lies in between the 2 capsules of the prostate

Answer 9

Prostatic venous plexus

Question 10

Arterial supply of Prostate

Answer 10

• Inferior vesical A
• Middle rectal A
• Internal Pudendal A

Question 11

Venous drainage of prostate

Answer 11

prostatic venous plexus

Question 12

tributaries & communications of prostatic venous plexus

Answer 12

tributaries: deep dorsal Veins of clitoris/penis

comminicates with vesical venous plexus above

Question 13

prostatic venous plexus drains into:

Answer 13

• Vesical Vein
• Internal Iliac Vein

Question 14

explain why prostate cancer can spread to vertebrae

Answer 14

prostatic venous plexus is connected to venous plexuses in front of vertebral bodies within the neural canal by Valveless vertebral veins of bateson

Question 15

Lymph drainage of prostate

Answer 15

• Internal Iiac LNs
• Sacral LNs
• Obturator LNs

Posterior surface: external Iliac LNs along vesical vessels

Question 16

main site of prostatic cancer in prostate

Answer 16

peripheral zone