Male Internal Viscera

Question 1

What is the prostate? (2)

Answer 1

• Surrounds prostatic urethra
• Covered: visceral layer of pelvic fascia

Question 2

What is the function of the prostate?

Answer 2

• Fnx: Contributes to seminal fluid

Question 3

Prostate Relations:
Base (sup) =

Answer 3

Neck of bladder

Question 4

Prostate Relations:
Apex (inf) =

Answer 4

Sup. aspect of urethral
sphincter and deep perineal muscles

Question 5

Prostate Relations:
* Ant. surface =

Answer 5

Pubic symphysis, retropubic space, puboprostatic lig.

Question 6

Prostate Relations:
* Post. surface =

Answer 6

Ampulla of rectum

Question 7

Prostate Relations:
* Inferolateral surface =

Answer 7

• Inferolateral surface: levator ani

Question 8

What are the 3 lobes of the prostate?

Answer 8

• 1 medial lobe (not palpable)
• 2 lateral lobes (R&L)
• Palpable on rectal examination

Question 9

What are the prostatic ducts? (2)

Answer 9

• 20-30 ducts
• Open into urethra

Question 10

What is the arterial supply of the prostate?

Answer 10

• Arterial supply: Prostatic branches
• Inferior vesical, middle rectal & internal pudendal arteries

Question 11

What is the venous supply of the venous drainage?

Answer 11

• Venous drainage
• Prostatic venous plexus → internal iliac veins

Question 12

What are the Bulbo-urethral glands? (3)

Answer 12

• Two pea-sized glands (Cowper’s glands)
• Posterolateral to membranous urethra
• Lies in deep perineal pouch

Question 13

What is the function of the Bulbo-urethral glands?

Answer 13

• Fnx: Contributes to seminal fluid

Question 13

Bulbo-urethral glands
* Excretory ducts open in _____ urethra

Answer 13

spongy

Question 14

What are the Seminal glands/vesicles? (2)

Answer 14

• Elongated structure covered by peritoneum
• Obliquely placed glands

Question 15

Where does the Seminal glands/vesicles lie?

Answer 15

• Sup. to prostate, post. to bladder, lateral to ampulla of
  ductus deferens, ant. to rectum

Question 16

• Duct of seminal gland joins _____ _______
• Ejaculatory duct

Answer 16

ductus deferens

Question 17

What is the function of the Seminal glands/vesicles?

Answer 17

• Function: Contributes fluid to seminal fluid

Question 18

What is the blood supply of the Seminal glands/vesicles?

Answer 18

• Blood supply
• Artery to seminal gland/vesical (B: IVA & IRA)

Question 19

What is the venous drainage of the Seminal glands/vesicles?

Answer 19

• Venous drainage
• Accompanying veins (to the arteries)

Question 20

What is the function of the Ductus deferens/Vas deferens?

Answer 20

Transport sperm

Question 21

What is the course of the vas deferens?

Answer 21

Question 22

What is the blood supply of the Ductus deferens/Vas deferens? (2)

Termination:

Answer 22

• Artery to ductus
  deferens (B: SVA)
• Terminates:
  anastomosis – testicular
  a.

Question 23

Venous drainage:
* Veins from ductus →
* Terminal portion →

Answer 23

• Veins from ductus →
  testicular vein
• Terminal portion →
  vesicular venous plexus

Question 24

Ejaculatory ducts
* Slender tubes:

Answer 24

Union of ductus deferens and duct of seminal glands

Question 25

Ejaculatory ducts

• Arise near –
• Enter –
• Opens –

Answer 25

• Arise near – neck of bladder
• Enter – posterior surface of
  prostate
• Opens – prostatic urethra

Question 26

Ejaculatory ducts

• Blood supply:

Answer 26

• Inferior vesical& middle
  rectal a.

Question 27

Ejaculatory ducts

• Venous drainage:

Answer 27

• Veins join prostatic and
  vesical venous plexuses

Question 28

Innervation: male internal genital organs
* Sympathetic: (2)

Answer 28

• Presynaptic: T12 – L2/L3
• Traverse sympathetic
  trunks

Question 29

Innervation: male internal genital organs
* Components:

Answer 29

• Components: lumbar
  splanchnic nerves &
  hypogastric plexus

Question 30

Innervation: male internal genital organs
* Parasympathetic: (2)

Answer 30

• Presynaptic: S2 & S3
• Traverse pelvic splanchnic
  nerves

Question 31

• Parasympathetic
• Join:

Answer 31

• Join: hypogastric/pelvic
  plexus