male reproduction system Flashcards
(27 cards)
EXTERNAL ORGANS of male reproductive system
Penis
Testes
Epididymis
INTERNAL ORGANS of male reproductive system
ductus deferens
Seminal vesicles
Prostate gland
Bulbourethral (Cowper’s) glands
each testis surrounded by
a thick collagenous connective tissue capsule called tunica albuginea
tunica albuginea
- anterior side….
- posterior side….
- thin
2. thick
septa
- extends…
- dividing the interior of testes into…
- from antside of the tunica albuginea and from the mediastinum testis
- incomplete compartments called TESTICULAR LOBULES
how many seminiferous tubules in loose connective tissue
1-4
penis divided into 3 parts
1-Root
2-body
3-glans
1– superf perineal pouch of pelvic floor
2–Suspended from pubic symphysis
3– most distal
Ligaments supporting the penis
Suspensory ligament
Fundiform ligament
Suspensory ligament connects..
erectile bodies to the pubic symphysis
Fundiform ligament attaches
penis to PS from linea alba
Penis fascia: External fascia of Colles
most superficial layer , directly under skin , continous with scarpas
Deep fascia (Buck’s fascia) where..continuation function
1.continuation of the deep
perineal fascia
2.holds erectile tissues together
erectile tissues for ROOT
3 tissues: two crura and bulb
2 muscles: ischiocavernosus x 2 and
bulbospongiosus x 2.
Three cylinders of erectile tissue for BODY
two corpora cavernosa separated by the
septum
one corpus spongiosum contains urether
erectile tissue for GLANS
From corpus spongiosum
Neurovasculature of the penis
ARTERIES
Internal pudendal arteries from anterior trunk of internal iliac - Dorsal - Deep - Bulbourethral
Neurovasculature of the penis
VENOUS DRAINAGE
- Deep dorsal vein of penis
- Superficial ‘’
SENSORY NERVE of penis
Dorsal nerve of the penis from
pudendal nerve -skin of glans penis
Ilioinguinal nerve – skin of body of
penis
Ducts associated with transporting sperm
— duct in testes
o Seminiferous tubules
o Tubuli recti - Sertoli cells.
o Rete testes – Simple squamous and simple C E
o Ductuli efferentes - Secretory cells and columnar ciliated cells
Ducts associated with transporting sperm
— duct outside testes
- Epididymis – pseudostratified columnar epithelium
- Vas deferens - ‘’ with stereocilia on surface –
- Urethra
4 parts of male urethra
PROSTATIC - transitional epithelium,
MEMBRANOUS -pseudostratified columnar epithelium
BULBOUS - ‘’
PENDULOUS -‘’
PROSTATIC URETHRA
measures
dilatable ?
passes thru
3-4cm
yes
thru prostate gland
MEMBRANOUS
measures
dilatable ?
passes thru
1cm
not very
urogenital diaphragm
BULBOUS +PENDULOUS
measures
travels in
15cm
corpus spongiosum to external urethral orifice.
