Final Flashcards
Two jobs of the testis!
Produce sperm Secrete hormones (testosterone)
Scrotum (3) points
Contains testi at lower temperature to allow for optimal sperm production
Prone to injuries
Easy to exam (6x4cm)
Testicular masses are (4)
Often firm solid
Painless
Do not trans illuminate
Usually malignant
Scrotal masses and those in the epididymis or spermatic cord are (3)
Painful
Transilluminate
Usually benign
Erecticle mechanisms
Corpora cavernous a
Contains urethra
Corpus spongiform
Surrounds erectile tissue
Tunica albuginea
American academy of pediatrics and circumcision
Found links between circumcision and decreased risk of urinary tract infections, rare penile cancer, HPV, HIV and other STI’s
Cons of circumcision (5)
Hemorrhage Infection Pain/trauma Diminished sensation > mother/child bonding
What do seminal vesicles do?
Secretes 70% of fluid components of semen = energy/fluidity for sperm
Hypothalamus -> ___ -> pituitary -> __ & __
Hypothalamus -> GnRH -> pituitary -> LH & FSH
Leydig cells produce ?
Testosterone
What acts on leydig cells to produce testosterone?
LH
What two hormones stimulate spermatogenesis?
testosterone and FSH
How many sperm does a man produce each day?
70-100 million
Penile disorders (7)
Lesion (HPV, molluscum, Bowens) Balanitis Posthitis Hypospadius Peyronie's disease Priapism Tumors
What is the peak age of tumors?
60.
These are rare, tend to involve the prepuce or glans
HPV
Painless, enlarging wart-like growth (condylomata acuminata)
Leukoplakia
Hyperkeratotitic
Scaly
White patches
On penile epithelium
What is necessary with suspected leukoplakia?
Biopsy!
Bowen’ disease (5)
Intraepdidermal PRECANCEROUS infuriated erythematous plaque
Ulcerated center
Development of pinkish or brownish applies covered with a thick horny layer (haha horny!?)
What is necessary with suspected Bowen’s disease?
Biopsy!
Also leukoplakia
2 skin cancers to worry about with penile lesions
Squamous cell carcinoma
Melanoma
Balantis. What is it and what percentage of urology patients?
Inflammation of glans in 11%