1. The Reproductive System
Part II Splanchnology
Chapter 8
The Reproductive System
The male reproductive organs
The female reproductive organs

2. Section 1: The male reproductive organs
I . The general introduction: 2 parts
Internal Genital Organs:
gonad--- testis,
ducts --- epididymis,
ductus deferens
ejaculatory ducts
urethra
accessory glands---seminal vesicle
prostate
bulbourethral glands
External genital organs: scrotum,
penis

3. Paired oval-shaped organs They are in the scrotum (crypartt)
Ⅱ. The testis:
The features of testes---
Paired oval-shaped organs
They are in the scrotum
(crypartt)
2 extremities,
2 surfaces,
2 borders:
Posterior border— (mesorchial border)
connected with the epididymis
Anterior border---

4. Ⅱ. The testis:
The structure of testes:
12~13 efferent ductules of testis
tunica albuginea
mediastinum testis--- rete testis
septula testis
lobules of testis ----
( )
straight seminiferous tubules
interstitial tissue of testis (secretes sexual hormones)
convoluted seminiferous tubules ( produce sperms)

5. Ⅲ. The Epididymis:
Position: in the scrotum, attached to the posterior border
of the testis
External feature: 3 parts---
head,
body,
tail

6. Ⅲ. The Epididymis:
Structure:
efferent ductules (head)
a coiled duct of epididymis
(body, tail)
ductus deferens

7. Ⅳ. The ductus deferens: Four parts:
the testicular part,
the funicular (spermatic) part,
inguinal part,
pelvic part: longest part
----- ampulla ductus deferentis

8. ---upper extremity of the testis → deep ring of inguinal canal
Spermatic cord:
---soft round rope
---upper extremity of the testis → deep ring of inguinal canal
---main structure :
ductus deferense,
testicular artery
pampiniform plexus of vein
nervous plexus
lymphatic vessels
remnants of vaginal process
---three tunics :
external spermatic fascia
cremaster
internal spermatic fascia

9. external spermatic fascia
cremaster
internal spermatic fascia

10. Ⅴ.The Ejaculatory duct:
Formation: It’s formed by the union of the end portion of the
ductus deferens and the seminal vesicle duct.
Position: It penetrated the base of the prostate, and opened into
the prostatic portion of urethra.

11. Ⅵ. The male urethra: it’s 15~20cm in length
Three parts
The prostatic portion
The membranous portion
The cavernous portion
Three constrictions
The internal orifice
The external orifice
The three dilations
The bulbar portion of urethra
The navicular fossa
The two curvatures
The subpubic curvature
The prepubic curvature It can be chan

12. Ⅶ. The prostate:
Location---in the lesser pelvic. Between the urinary bladder
and the urogenital diaphragm; in front of the rectum and
posterior to the pubic symphysis
Features--- Chestnut-shaped
apex , base,
anterior surface,
posterior surface (a prostatic sulcus)
the urethra passed it
Structure: 5 lobes

13. Ⅷ. The seminal vesicles:
oval sacculated organs
posterior to the fundus of urinary bladder
open to the ejaculatory duct
Ⅸ. The bulbourethral gland
in the urogenital diaphragm
open to the bulbar portion of urethra

14. Ⅹ.The Scrotum: 2 layers---skin, contents: testis, epididymis,
dartos (septum)
contents: testis,
epididymis,
spermatic cord
and its coverings

15. External features: 3parts body root Structures:
Ⅺ. Penis:
External features: 3parts
head (glans)
body
root
Structures:
--- three cavernous bodys:
two cavernous bodys of penis
one cavernous body of urethra
--- albuginea of 3 cavernous bodies
--- deep fascia of penis
--- superficial fascia
--- skin
* Prepuce: skin is folded
* Frenulum Prepuce