Transcript Retentio testis - Universitetet i Oslo

The Male Genital Organs – an
Overview
Per Brodal
Institutt for medisinske basalfag
Universitetet i Oslo
9th Semester 2008
Overview
Vesicula
seminalis
(glandula
vesiculosa)
Ductus
deferens
Prostatic
gland
Urethra
Penis
Epididymis
Testis
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Part of the pelvic
floor (diaphragma
urogenitale)
Glandula
bulbourethrales
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Descent of the Testes during Development
Peritoneum
Testis
Scrotum
The testes develop on the
posterior abdominal wall
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Retentio testis
(kryptorchismus): When
the testes do not reach
the scrotum
Processus
vaginalis
Tunica vaginalis
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The Layers of the Scrotum: Derived from
the Abdominal Wall
Peritoneum
Transverse fascia
Internal oblique
muscle
The scrotum is
designed for
temperature-control
Cremaster muscle
(striated)
Fascia spermatica
interna
Ductus deferens
Skin (fat-free)
Tunica Dartos (smooth
muscles)
Testis
Tunica vaginalis
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Scrotum and the Spermatic Cord
Cremaster muscle
Tunica vaginalis
(parietal layer)
Fascia spermatica
interna
Epididymis
Testis
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The Spermatic Cord
(Funiculus spermaticus)
Cremaster muscle
Plexus pampiniformis
Ductus deferens
Arteria
testicularis
Arteria
testicularis
Ductus
deferens
Plexus pampiniformis
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The Inguinal Canal
External oblique muscle
Anulus inguinalis
superficialis
Internal oblique muscle
Spermatic cord
Transversus abdominis
muscle
Anulus inguinalis
profundus
Inguinal (indirect)
hernia
Thieme, Atlas of Human Anatomy 2006
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Testis and Epididymis
Caput epididymidis
Tunica albuginea
Ductus epididymidis
(6 m)
Ductus deferens
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The Prostatic gland
Inner glands
Peripheral glands
Urethra
Colliculus seminalis
Inner = periurethral (hypertrophy common)
Outer = main (cancer common)
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The Male Urethra and Associated Glands
Prostatic gland
Vesicula seminalis
Colliculus
seminalis
Pars
prostatica
Pars
membranacea
Pars
spongiosa
Bulbourethral glands
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Ductus ejaculatorius
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Glands
Ampulla of ductus deferens
Colliculus seminalis
Vesicula
seminalis
Prostata
bulbo-urethral
glands
The bladder and prostatic
gland from behind
Netter
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Urogenital diaphragm
Openings of ducts from
bulbo-urethral glands
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Penis
Glans penis
Corpora cavernosa
Ischiocavernosus
muscle
Corpus
spongiosum
Urethra
Fossa navicularis
Bulbospongiosus muscle
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Bulbus penis
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Mechanism of Erection – Corpora
cavernosa
Squeezing of veins
Tunica albuginea
Blood-filled
caverns
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Arterial dilatation
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Arteries of the pelvis
Common iliac artery
(a. iliaca communis)
Internal iliac artery (a.
iliaca interna)
Superior and
inferior gluteal
arteries
External iliac artery
(a. iliaca externa)
Obturator artery
(a. obturatoria)
Superior vesical artery
Internal pudendal artery (a.
pudenda interna)
Middle rectal
artery (Uterine)
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Arterial supply of the pelvis
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Variations: Branching of internal iliac artery
Internal iliac
Internal
pudendal
Inferior
gluteal
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Blood Supply of
the Testis
Testicular artery
Venous
drainage
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Blood Supply of the Penis
Internal pudendal
artery
Dorsal artery
Deep arteries
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Lymphatic Drainage of the Testes and
Scrotum
Lumbar lymph
nodes
Superficial inguinal
lymph nodes
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Scrotal Swelling – What can it be?
Bimanual examination
Thieme Atlas of
Anatomy
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Inguinal hernia
Hydrocele
Varicocele
Epididymitis
Spermatocele
Testicular tumor
Is the mass confined to the scrotum?
Is there a transient enlargement when the patients coughs?
Is the mass translucent?
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