Male reproductive system histology Flashcards
What is the epithelium of the epididymis?
Pseudostratified columnar with stereocilia
How does sperm travel from the testes to the vas deferens?
Via epididymis
The bulbourethral glands open into which part of the urethra?
Membranous urethra
What is the function of the bulbourethral glands?
Produces pre-ejaculate - neutralises acidity of the urethra before sperm enters
Where is sperm produced within the testicle?
Seminiferous tubules
Are leydig cells found within or outside of the seminiferous tubules?
Outside
Are sertoli cells found within or outside of the seminiferous tubules?
Within
What epithelium are sertoli cells?
Simple columnar
What is the epithelium of the prostatic urethra?
Transitional
What is the epithelium of the membranous urethra?
Pseudostratified columnar / stratified columnar
What is the epithelium of the navicular fossa?
Stratified squamous
What is the function of the stereocilia in the epididymis?
Absorb fluid
What are the 3 zones of the prostate?
Central zone
Transition zone
Peripheral zone
The central zone of the prostate surrounds what?
Ejaculatory ducts
The transition zone of the prostate surrounds what?
Prostatic urethra
Most cases of benign prostatic hyperplasia occur in which zone?
Transition zone
Most cases of prostate adenocarcinoma occur in which zone?
Peripheral zone
What is the epithelium of the prostate?
Simple columnar
Which hormone is responsible for prostatic growth?
Dihydrotestosterone
Which enzyme turns testosterone into dihydrotestosterone?
5a-reductase
What is the epithelium of the seminal vesicles?
Pseudostratified columnar
Fluid from the seminal vesicles contains which substance which acts as a source of energy for sperm?
Fructose
Which medication blocks the action of 5a-reductase and is prescribed in BPH?
Finasteride
