Genitourinary Flashcards
Seminiferous tubules
Where sperm is stored
Epididymis
Where sperm is stored and matures
Pampiniform plexus
Complex system of blood vessels surrounding testicular artery
Vas deferens
Connects to seminal vesicle to form ejaculatory duct
Seminal vesicle
Where seminal fluid is produced
Responsible for release of GnRH
Hypothalamus
Secretes gonadotropic hormones LH and FSH
Anterior pituitary
Where does spermatogenesis occur?
Seminiferous tubules
Four phases of spermatogenesis
Spermatogonium- diploid
Primary spermatocyte- mitosis
Secondary spermatocyte- meiosis
Spermatids- mature into spermatozoa
Control of Boners
Parasympathetic
S2-s4 level of pelvic nerve
Ejaculation control
Sympathetic
T-12 through L2 inferior mesenteric ganglion
Causes of male gonadal disorder
Mumps
Klinefelter
Difference between primary and secondary hypogonadism
Primary- originates at testes
Secondary- due to lack of secretion of LH/FSH from ant pituitary
BPH
enlarged prostate
Compression of prostatic urethra causing bladder outlet obstruction
DHT (dihydrotestosterone)
Causes incontinence/UTIs
Prostatitis
Acute or chronic
Commonly bacterial
<35= STI
> 35= e. Coli
Varicocele
Dilation of pampiniform plexus in scrotum
-idiopathic, renal cell carcinoma
Hydrocele
Fluid sac in tunica vaginalis
Idiopathic/congenital
Spermatocele
Cystic sac in epididymis
Traumatic
Epididymitis
Infection/inflammation…
E.coli from uti or STI
Testicular torsion
Twisting of spermatic cord cuts off blood supply…..
Can be congenital?
Phimosis
Nonretractable foreskin
Paraphimosis
Retracted foreskin unable to return to normal position
Peyronie’s disease
Fibrous plaques causing abnormal curvature
Repeated trauma
Penile fracture, what breaks?
Ruptured tunica albuginea and corpora cavernous a
