Transcript External genital organs

The Reproductive System
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Contents
The male reproductive systme
The female reproductive systme
Structures of the reproductive systems
Internal genital
organs
MALE
FEMALE
Gonads
Testis
Ovary
Transport
ducts
Epididymis
Ductus deferens
Ejaculatory duct
Male urethra
Uterine tube
Uterus
Vagina
Accessory
glands
Seminal vesicle
Prostate
Bulbourethral gland
Greater vestibular
gland
Scrotum
Penis
Vulva
External genital organs
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The male reproductive systme
The male reproductive organs
Internal genital organs:
gonad--- testis (睾丸）,
ducts --- epididymis （附睾）,
ductus deferens （输精管）
ejaculatory ducts （射精管）
urethra （尿道）
accessory glands--seminal vesicle (精囊腺)
prostate (前列腺)
bulbourethral glands (尿道球腺)
External genital organs:
scrotum (阴囊),
penis (阴茎)
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Ⅰ. The testis:
◙ The features of testes--Paired oval-shaped organs
They are in the scrotum
(crypart)
2 extremities,
2 surfaces,
2 borders:
Posterior border— (mesorchial border)
connected with the epididymis
Anterior border--8
◙ The structure of testes:
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Ⅱ. The Epididymis:
◙ Position: in the scrotum,
attached to the posterior
borderof the testis
◙ External feature: 3 parts-head,
body,
tail
◙ Structure:
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Ⅲ. The ductus deferens:
◙ the testicular part,
◙ the funicular (spermatic) part,
◙ inguinal part,
◙ pelvic part: longest part
----- ampulla ductus deferentis
输精管壶腹
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The ductus deferens
Pelvic part
Inguinal part
Funicular part
Testicular part
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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 muscle
internal spermatic fascia
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Descending testis
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Ⅳ.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.
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Ⅴ. The male urethra:
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Three parts
prostatic portion
membranous portion
cavernous portion
Three constrictions
internal orifice
membranous portion
external orifice
The three dilations
prostatic portion
bulbar portion of urethra
navicular fossa
The two curvatures
subpubic curvature
prepubic curvature
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Ⅵ. 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
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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
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External genital organs
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Scrotum
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Penis
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Ⅹ.The Scrotum:
◙ 2 layers---skin,
dartos (septum)
◙ contents: testis,
epididymis,
spermatic cord
and its coverings
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Ⅺ. Penis
◙ External features: 3 parts
head (glans)
body
root
◙ Structures:
--- three cavernous bodys （海绵体）:
two cavernous bodys of penis
one cavernous body of urethra
--- albuginea (白膜) of 3 cavernous bodies
--- deep fascia of penis
--- superficial fascia
--- skin
* Prepuce (阴茎包皮）: skin is folded
* Frenulum Prepuce （包皮系带）
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The female reproductive systme
The Female Genital Organs
Internal Genital Organs:
gonad--- ovaries (卵巢）
ducts --- uterine tubes （输卵管）
uterus （子宫）
vagina（阴道）
accessory glands--greater vestibular gland
（前庭大腺）
External genital organs:
vulva or female pudendum
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Ⅰ. Ovaries
◙ Location: in the ovarian fossa
◙ Features:
two surfaces:
lateral and medial
two extremities:
superior and inferior.
two borders:
two ligaments:
suspensory lig. of ovary;
proper lig. of ovary
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Ovary
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Ⅱ. Uterine tubes:
①
③
◙ four parts:
① infundibulum of uterine tube(漏斗部）
② ampulla of uterine tube（壶腹部）
③ isthmus of uterine tube（峡部）
④ uterine part（子宫部）
◙ two orifices:
⑤ abdominal orifice（腹腔口）
⑥ uterine orifice（子宫口）
⑥
④
⑤
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Ⅲ. Uterus:
◙ The portion and relations:
--- in the lesser pelvis
--- anteversion（前倾）
--- anteflexion（前屈)
◙ relations
--- anteriorly:
urinary bladder,
vesicouterine pouch
--- posteriorly:
sigmoid colon,
rectum,
rectouterine pouch
--- inferiorly: vagina
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Anteversion (前倾）
Anteflexion (前屈）
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The features of the uterus :
inverted pear shaped
3 portions:
the fundus
the body
the cervix--- 2 parts:
isthmus
峡部
supravaginal part
vaginal part
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isthmus
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◙ Supports of uterus:
---Broad ligaments
mesovarium 卵巢系膜
mesosalpinx
输卵管系膜
mesometrium 子宫系膜
--- Round ligaments
--- Cardinal ligaments
--- Uterosacral ligaments
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The round ligaments
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Cardinal ligaments
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◙ The structures:
--- endometrium 子宫内膜
--- myometrium 肌层
--- perimetrium 子宫外膜
cavity of uterus
cervical canal
internal orifice
external orifice
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Ⅳ. Vagina:
◙ The fornix of vagina
fornix
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Ⅴ. Female pudendum
mons pubis 阴阜
greater lips 大阴唇
lesser lips 小阴唇
vaginal vestibule 阴道前庭
vaginal orifice,
external orifice of the urethra
orifices of the greater vestibular glands
◙ clitoris and hymen 阴蒂和处女膜
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Ⅵ. Greater vestibular glands
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Greater vestibular glands62
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