Anatomy - Male Reproductive Flashcards
Name the Arterial, Vein, and Nerve supply of the Scrotum
Arteries: Anterior & Posterior scrotal arteries, cremasteric arteries
Vein: Scrotal vein
Innervation: Anterior & Posterior scrotal nerves
Response to cool temperature or stroking of medial aspect of thigh
Elevates the scrotum
(shrinkage)
Cremasteric Reflex
During a prostatectomy, the surgeon attempts to protect the prostatic plexus of nerves which contains nerve fibers that innervate penile tissue to cause erection. From which nerves do these fibers originate?
Pelvic splanchnics
What does the Anterior scrotal nerve consist of? (2)
Terminal part of the ilioinguinal nerve
Genital branch of genitofemoral nerve
What does the Posterior scrotal nerve come from?
Branch of the perineal nerve
Testes are surrounded by:
tunica albuginea
Tunica albuginea surrounds:
testes
What is found within tunica albuginea’s lobules?
Seminiferous tubules
Where are Leydig cells are found?
Seminiferous tubules
What type of cells do Seminiferous tubules have?
Leydig cells
Efferent ductules drain to ____
Epididymis
What drains from the testes to the epididymis?
Efferent ductules
Where does sperm mature?
Epididymis
Groove between testis and epididymis
Sinus of epididymis
Tail of the epididymis is continuous with:
Vas deferens
What Innervates the testes and epididymis? Sympathetic? Parasymp?
Testicular plexus of nerves
Sympathetic trunk T7
Parasympathetic vagus nerve
What veins converge superiorly to form the testicular vein?
Pampiniform plexus
What does the Pampiniform plexus do?
Thermoregulatory system of the testis
How many inches long is the ductus deferens?
18 inches
Where does the Ductus deferens arise from? Pass through? Terminal end?
Arises from tail of epididymis
Passes through the inguinal canal
Terminal end of the duct dilates to form the ampulla
What’s the vein for the Ductus Deferens?
Testicular vein
__ + ___ = Ejaculatory duct
Seminal vesicles + Vas deferens = Ejaculatory duct
Ejaculatory ducts are ___ at inferior end and ___ at superior end
Close together at inferior end
Far apart at superior end
How many lobes are in the prostate?
5
Name the 5 lobes of the prostate and where they go
Anterior lobe - Anterior to urethra
Middle lobe - Between urethra and ejaculatory ducts
Right & Left lateral lobes - Right and left side of urethra
Posterior lobe - Posterior to urethra and receives ejaculatory ducts
What lobes of the prostate undergoes hormone induced hypertrophy with age known as BPH
Middle and lateral
What separates the right and left lateral lobes Anteriorly? Posteriorly?
Anteriorly: anterior lobe
Posteriorly: Central sulcus
Artery, Vein, Innervation of Prostate
Arterial supply: Branches of inferior vesical and middle rectal arteries
Venous drainage: Prostatic venous plexus-internal iliac-> IVC
Innervation: Inferior hypogastric nerve
3 parts of penis
Root, body, glans
Root and body have how many layers of erectile tissue?
3
Artery and Vein of penis
Arterial supply:
Branches of the pudendal artery
Venous drainage:
Deep dorsal vein of the penis-> prostatic venous plexus->internal iliac->IVC
Superficial dorsal vein->ext pudendal-> g. saphenous-> femoral->ext iliac->IVC
Innervation of penis
Pudendal nerve - dorsal nerve of the penis
Pelvic plexus - Ilioinguinal nerves & Cavernous nerves
A mucous-like secretion is excreted into the urethra during erotic stimulation thanks to the:
Bulbourethral Glands
Name 3 parts of the Spermatic Cord
Ductus deferens, testicular artery, Pampiniform venous plexus
