Male reproductive anatomy Flashcards
Where is the epididymis located?
On top of the testis
What attaches to the epididymis?
Vas deferens
Where is the ejaculatory duct located?
In the prostate gland
how long is the male urethra?
20 cm long
Where approximately does the elevator anti sit?
Just below the prostate gland
Where is the external urethral sphincter located?
Just below the prostate gland
Where is the internal urethral sphincter located?
Bladder neck
Where does the prostate gland lie in relation to the bladder?
Inferior
What is the internal urethral sphincter formed from?
detrusor muscle
Internal urethral sphincter is under voluntary/involuntary control?
Involuntary
What does the internal urethral sphincter do in response to ejaculation?
Contracts during ejaculation to prevent retrograde ejaculation
What do testes travel through to get from posterior wall of abdo cavity -> descended position of the scrotum?
Inguinal canal
Components of the spermatic cord
Testicular artery Testicular vein Vas deferens Lymphatic vessels Nerves - autonomic (vas deferens) - somatic (cremaster muscle)
What is the sac in the scrotum called?
Tunica vaginalis
Hydrocele
Excess fluid in the tunica vaginalis
Where is sperm produced?
Seminiferous tubules (within the testis)
What helps to control temperature of the testis?
Dartos muscle
Route of sperm
Produced in seminiferous tubules ->
Rete teste ->
Epididymis ->
Vas deferens
The vas deferens can be palpated within the spermatic cord. True or false?
True
Blood supply to the testis arises from
The lateral aspect of the abdominal aorta (testicular arteries)
Venous drainage from the testis - where does right testicular vein drain to?
IVC
Venous drainage from the testis - where does the left testicular vein drain to
Left renal vein
2 functions of the prostatic urethra
Drains urine from the bladder
Passes semen in ejaculation
What does the vas deferens lie within?
Spermatic cord
