Male External Genital Organs: Penis

1 Corpus cavernosum of penis

2 Corpus spongiosum of penis

3 Corona of glans penis

4 Glans penis

5 Suspensory ligament of penis

6 Inferior pubic ramus

7 Crus penis

8 Bulb of penis

9 Deep dorsal vein of penis

10 Septum pectiniforme

11 Dorsal artery of penis

12 Bulbo-urethral or Cowper’s gland

13 Urinary bladder

14 Seminal vesicle

15 Ampulla of ductus deferens

16 Ductus deferens

17 Membranous urethra

18 Prostate

19 Ureter

20 Common iliac artery and vein

21 Fifth lumbar vertebral body

22 Intestinal loops

23 Rectus abdominis muscle

24 Pubic symphysis

25 Root of penis

26 Sacral bone

27 Ampulla of rectum

28 Anal canal

29 External anal sphincter muscle

Male external genital organs (lateral aspect). The corpus spongiosum of the penis with the glans penis has been isolated and reflected.

Sagittal section of the pelvic cavity with the male genital

organs (MRI scan; from Heuck et al., MRT-Atlas, 2009).

Resin cast of erected penis.

Male external genital organs and accessory

glands (schematic drawing).

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Male Internal Genital Organs: Testis and Epididymis 343

Testis and epididymis with investing

layers (lateral aspect).

Testis and epididymis (lateral

aspect). The tunica vaginalis has

been opened.

Testis, epididymis, and spermatic

cord (left side, posterolateral aspect).

Dissection of spermatic cord and ductus

deferens.

1 Spermatic cord covered with

cremasteric fascia

2 Cremaster muscle

3 Position of epididymis

4 Internal spermatic fascia

5 Position of testis

6 Internal spermatic fascia with adjacent

investing layers of testis (cut surface)

7 Head of epididymis

8 Testis with tunica vaginalis (visceral layer)

9 Body of epididymis

10 Pampiniform venous plexus

(anterior veins)

11 Testicular artery

12 Tunica vaginalis

(parietal layer, cut edge)

13 Skin and dartos muscle (reflected)

14 Ductus deferens

15 Artery of ductus deferens

16 Posterior veins of pampiniform plexus

17 Tail of epididymis

18 Transition of epididymal duct

to ductus deferens and venous plexus

19 Parietal layer of tunica vaginalis

20 Appendix of epididymis

21 Appendix of testis

22 Gubernaculum testis

1 Spermatic cord (cut surface)

2 Head of epididymis (cut surface)

3 Septa of testis

4 Mediastinum testis

5 Tunica albuginea

6 Superior pole of testis

7 Convoluted seminiferous tubules

8 Inferior pole of testis

Longitudinal section through testis

and epididymis. The left figure shows

the testicular septa after removal of the

seminiferous tubules.

344 Male Internal Genital Organs: Accessory Glands

1 Ureter

2 Ductus deferens

3 Seminal vesicle

4 Ampulla of ductus deferens

5 Ejaculatory duct

(proximal portion)

6 Prostate

7 Membranous urethra

8 Bulbo-urethral or Cowper’s

gland

9 Bulb of penis

10 Penis

11 Glans penis

12 Urinary bladder

13 Levator ani muscle

14 Obturator internus muscle

15 Pelvic bone (cut edge)

16 Puboprostatic ligament

17 Corpus spongiosum

of penis

18 Head of epididymis

19 Beginning of ductus

deferens

20 Testis

21 Tail of epididymis

22 Corpus cavernosum of penis

23 Spermatic cord

24 Pectineus and adductor

muscles

25 Pubic bone

26 Prostatic part of urethra

(seminal colliculus)

27 Rectum

28 Sciatic nerve

29 Great saphenous vein

30 Sartorius muscle

31 Femoral artery and vein

32 Rectus femoris muscle

33 Tensor fasciae latae muscle

34 Pectineus muscle

35 Iliopsoas muscle

36 Vastus lateralis muscle

37 Obturator externus muscle

38 Femur

39 Ischial tuberosity

40 Gluteus maximus muscle

Accessory glands of male genital organs in situ. Coronal section through the pelvic cavity.

Posterior aspect of urinary bladder, prostate, and seminal vesicles.

Horizontal section through pelvic cavity at the level of prostate.