Male Genital Organs

Question 1

Male homologue of labia
majora

Answer 1

Scrotum

Question 2

Layers of the scrotum

Answer 2

• Skin
• Dartos layer
• External spermatic fascia
• Cremasteric fascia and muscle
• Internal spermatic fascia
• Tunica vaginalis testis
• Parietal layer (periorchium)
• Visceral layer (epiorchium)

Question 3

Dartos muscle is inmervated by

Answer 3

Genitalia branch of genitofemoral nerve

Question 4

Posterior to dartos layer

Answer 4

Superficial perineal fascia (colles fascia)

Question 5

Cremaster Muscle is innervated by

Answer 5

Genital branch of genitofemoral nerve

Question 6

Arteries of the scrotum

Answer 6

Posterior scrotal br.
(Internal pudendal a.)
- Anterior scrotal br.
(External pudendal a.)
- Cremasteric br.
(Inferior epigastric a.)

Question 7

Nerves of the scrotum

Answer 7

• Ant. Scrotal nn.
  (Ilioinguinal n.)
• Genital br.
  (Genitofemoral n.)
• Post. Scrotal nn
  (Perineal br. of pudendal n.)
• Perineal br.
  (Posterior femoral cut n.)

Question 8

Lymphatics of scrotum

Answer 8

Superficial inguinal lnn

Answer 9

Superficial inguinal Lynn

Question 10

Muscle of erection

Answer 10

Ischiocavernous muscle

Question 11

Muscle of ejaculation

Answer 11

Bulbospongious muscle

Question 12

foreskin of penis,

Answer 12

Prepuce

Question 13

Layers of the penis

Answer 13

• Skin
• Superficial fascia of penis (dartos mm. fibers)
• Deep fascia of penis (Buck’s fascia)
• Tunica albuginea

Question 14

Ligaments of the penis

Answer 14

Fundiform lig. of penis

Suspensory lig.
Of Penis

Question 15

Arteries of the penis

Answer 15

• External pudendal a. to
  skin
  (Femoral a.)
• Dorsal a. of penis to
  glans
• Artery of bulb
• Urethral a.
• Deep ar. of penis to
  corpora cavernosa
  Helicine arteries
  -All are from internal
  pudendal a.

Question 16

Innervation of
penis

Answer 16

P.S. Fibers: Erection
(vascular event,
vd, relax of cavern smooth mm.)
From S 2-4
Carried in pelvic splanchnic nn.
(nn. erigentes) to the
pelvic plexus
- Sym. Fibres: Ejaculation
(relax of ejac. duct. smooth mm.
contr. of ductus deff. smooth mm. )
From L 1-2

Question 17

Lymph vessels of the penis

Answer 17

Superficial inguinal lymph nodes
Glans the deep inguinal ln

Question 18

Remnant of upper part of the
paramesonephric canal

Answer 18

Appendix of testis

Question 19

Layers of testis (from outer to inner)

Answer 19

1- Tunica vaginalis (closed peritoneal sac)
- Parietal layer (periorchium)
- Visceral layer (epiorchium) (ant. margin and two faces)
2- Tunica albuginea
3- Tunica vasculosa (vascular layer)
Covers the inner side of the t. albuginea and septa testis

Question 20

Arteries of testis

Answer 20

Testicular artery
(Abdominal aorta)

Question 21

Lymphatics

Answer 21

Lateral aortic and preaortic ln

Question 22

Nerves

Answer 22

T 10-11 Aortic and
renal plexus

Question 23

Ductus Deferens
=deferent duct = V

Answer 23

Scrotal part
- Funicular part - Inguinal part
- Pelvic part

Question 24

Ductus deferens crosses

Answer 24

External iliac vessels
Testicular vessels
Inferior epigastric vessels
Superior vesicular vessels
Obturator nerve vessels
Ureter

Question 25

Arteries of ductus deferens

Answer 25

Artery to ductus deferens (branch of umblical artery) - Superior vesicle a. to ampulla Veins Accompany the arteries

Question 26

Lymphatics of ductus deferens

Answer 26

External iliac lymph nodes

Question 27

Nerves of ductus deferens

Answer 27

Inferior hypogastric plexus

Question 28

Arteries of seminal vesicle

Answer 28

Arteries: - Inferior vesicle a. - Middle rectal a. (internal iliac a.) Veins Accompany the arteries

Question 29

Lymph nodes of seminal gland

Answer 29

Internal and external lymph nodes

Question 30

Nerves of seminal vesicle

Answer 30

Inferior hypogastric plexus

Question 31

Arteries of prostate

Answer 31

Inferior vesicle a. Internal pudendal a. Middle rectal a.

Question 32

Nerves of prostate gland

Answer 32

Symp L1-2 Ps S2-4