MALE GENITAL ORGANS
Internal genital organs:
Testis
Epididymis
Ductus deferens
Urethra masculina
Vesicula seminalis
Prostata
External genital organs:
Penis
Scrotum
Development: Wolffian ducts
Müllerian ducts
TESTIS
Facies medialis
Facies lateralis
Extremitas superior
Extremitas inferior
Margo anterior
Margo posterior
Lamina visceralis tunicae vaginalis
(Epiorchium)
Tunica albuginea
Mediastinum testis
Septula testis
Lobuli testis
Hilum testis
Tubuli seminiferi contorti
Spermatozoa
Supporting cells of Sertoli
Interstitial cells of Leydig
Tubuli seminiferi recti
Rete testis
Ductuli efferentes testis
A. testicularis
Plexus pampiniformis
- vv. testiculares
Nll. lumbales
EPIDIDYMIS
Caput epididymidis
Corpus epididymidis
Cauda epididymidis
Sinus epididymidis
Lig. epididymidis sup. et inf.
Lig. scrotale
(Gubernaculum testis)
Lobuli epididymidis
Ductus epididymidis
A. testicularis
Plexus pampiniformis
Plexus testicularis
Appendix testis
Appendix epidydimidis
Ductuli aberrantes
DESCENSUS TESTIUM
Retentio testis (cryptorchidism)
DUCTUS DEFERENS (VAS DEFERENS)
Pars epididymica
Pars funicularis
Pars inguinalis
Pars pelvina
Ampulla ductus deferentis - diverticula ampullae
Ductus ejaculatorius
A. ductus deferentis
Plexus pampiniformis et vesicalis
Nll. iliaci int. et ext.
Nn. splanchnici lumbales, plexus hypogastricus inf.
FUNICULUS SPERMATICUS: Ductus deferens
A. ductus deferentis
A. testicularis
Plexus pampiniformis
Plexus testicularis
Plexus deferentialis
COVERINGS OF THE TESTIS, EPIDIDYMIS AND SPERMATIC
CORD
Epiorchium (Lamina visceralis tunicae vaginalis)
Periorchium (Lamina parietalis tunicae vaginalis)
Cavum serosum scroti
Fascia spermatica interna (Fascia transversalis)
Fascia cremasterica - M. cremaster
(M. obliquus abdominis internus, M. transversus abdominis)
Fascia spermatica externa (Fascia abdominis superficialis)
CANALIS INGUINALIS
Posterior wall:
Fascia transversalis:
Falx inguinalis
Trigonum inguinale
(Hesselbachi)
Lig. interfoveolare
Anulus inguinalis prof.
Tractus iliopubicus
Anulus femoralis
CANALIS INGUINALIS
Inferior wall:
Lig. inguinale
CANALIS INGUINALIS
Anterior wall:
Aponeurosis m. obliqui
externi abdominis
Anulus inguinalis spf.
- crus mediale
- crus laterale
- fibrae intercrurales
- lig. inguinale reflexum
CANALIS INGUINALIS
Superior wall:
M. obliquus internus abdominis
M. transversus abdominis
- M. cremaster
Fossa supravesicalis
Fossa inguinalis medialis
- direct inguinal hernia
Fossa inguinalis lateralis
- indirect inguinal hernia
Plica umbilicalis mediana
- lig. umbilicale medianum
Plica umbilicalis medialis
- lig. umbilicale mediale (laterale)
(pars occlusa a. umbilicalis)
Plica umbilicalis lateralis
- vasa epigastrica inf.
VESICULAE SEMINALES
Ductus excretorius
Ductus ejaculatorius
PROSTATA
Basis
Apex
Facies anterior
Facies posterior
Facies inferolaterales
Lobus medius
Lobus dexter et sinister
Isthmus
Zona periurethralis
Zona interna
Zona externa
Ductuli prostatici
Capsula propria, fascia periprostatica
GLANDULAE BULBOURETHRALES
Ductus gl. bulbourethralis
URETHRA MASCULINA
Ostium urethrae internum
Ostium urethrae externum
Pars intramuralis – M. sphincter vesicae
Pars prostatica
Pars membranacea – M. sphincter urethrae
Pars spongiosa – Ampulla urethrae
Corpus spongiosum penis
Fossa navicularis
Valvula fossae navicularis
Glandulae urethrales
Lacunae urethrales
Pars prostatica:
Crista urethralis
Colliculus seminalis
Utriculus prostaticus
Ductus ejaculatorii
Sinus prostatici
Curvatura subpubica
Curvatura praepubica
Urethra mobilis (anterior)
Urethra fixa (posterior)
EXTERNAL GENITAL ORGANS
PENIS: Radix
Corpus
Glans
Praeputium
SCROTUM
PENIS
Glans penis Glandulae praeputiales
Collum glandis Smegma praeputii
Corona glandis Frenulum praeputii
Dorsum penis Corpus cavernosum
Facies urethralis Corpus spongiosum
Raphe penis Tunica albuginea
Praeputium Trabeculae
Ostium praeputii Cavernae
Corpus cavernosum
- crura penis - crista phalica
Corpus spongiosum
- bulbus penis
Glandulae bulbourethrales
COVERINGS OF PENIS:
Fascia penis profunda
(Aa., Nn. dorsales penis, V. dorsalis penis profunda)
Fascia penis superficialis
(Vv. dorsales penis spf.)
Lig. fundiforme penis
Lig suspensorium penis
SCROTUM
Raphe scroti
Pubes
Tunica dartos scroti
Septum scroti
Cavum scroti
A.pudenda ext.
A. pudenda int.
V. femoralis
V. pudenda int.
Nll. inguinales spf.
N. genitofemoralis
N. ilioinguinalis
N. pudendus
N. cutaneus femoris post.
Plexus hypogastricus inf.
Hydrocele, varicocele
ANATOMICAL BASIS OF ERECTION
Parasympathetic stimulation
– relaxation of smooth muscle in cavernae and
aa. helicinae, compression of venous plexuses by
bulbospongious and ischiocavernous muscles → erection
Sympathetic stimulation
- contraction of smooth muscle of aa. helicinae, relaxation of
bulbospongious and ischiocavernous muscles, drainage
of blood into v. dorsalis penis prof. → detumescence
EJACULATION OF THE SEMEN
1. Emission of sperms and genital glands secretion
- sympathetic stimulation
2. Expulsion of the semen from the spongy urethra
(ejaculation) – parasympathetic stimulation
DIAPHRAGMA PELVIS
M. levator ani – pars iliaca (M. iliococcygeus)
- pars pubica (M. pubococcygeus)
(- M. puborectalis)
M. coccygeus
Hiatus urogenitalis
DIAPHRAGMA UROGENITALE
M. transversus perinei profundus – Centrum perineale
M. sphincter urethrae
Lig. transversum perinei
Glandulae bulbourethrales
M. transversus perinei spf.
Fascia diaphragmatis urogenitalis inf.
V. dorsalis penis prof.
M. ischiocavernosus
M. bulbospongiosus
M. sphincter ani externus
Lig. anococcygeum
Fascia obturatoria
Canalis pudendalis
(Alcock)
Fascia diaphragmatis
pelvis sup.
Fascia diaphragmatis
pelvis inf.
Fossa ischiorectalis
Fascia diaphragmatis urogenitalis sup. et inf.
Spatium perinei profundum
Fascia perinei spf.
Spatium perinei spf.
Recessus pubicus
fossae ischio-
rectalis