How many days does spermatogenesis take in the man?
16
32
64
90
Correct Answer :
C. 64
the entire process of spermatogenesis takes 64 days made by several cycles, one of which requires 16 days.
Related Questions
How long post bilateral orchiectomy, will patients be functionally castrated?
immediately
after 2 hrs.
after 12 hrs.
after 24 hrs.
Which zone of the prostate originates from the Wolffian duct tissue:
central zone
peripheral zone
transitional zone
periurethral glands
All of the following conditions are related to obesity syndrome, EXCEPT:
super fertility
increase aromatization reaction
increase resistance to circulating insulin
sleep apnea
Regarding renal ectopia, usually, the adrenals:
are cross ectopic
are at their normal position
travel with the kidneys
undergo ischemic atrophy
By which of the following structures, do the fused lower poles of hoarseshoe kidneys get trapped during embryologic ascent?
inferior mesenteric artery
superior mesenteric artery
celiac artery
common iliac artery
Which lab results indicate poor prognosis of male infertility?
azoospermia; normal FSH; increase LH
azoospermia; decrease FSH; normal LH
oligospermia; increase FSH; normal LH
oligospermia; normal FSH; decrease LH
What is false concerning the urinary bladder anatomy?
as it distends, it peels off the peritoneum from the abdominal wall
the interureteric ridge is located between the 2 ureteric orifices and the uvula vesicae
Waldeyer`s sheath covers only the distal ureter and forms the deep trigone
in adults, it is percussible over the abdomen when contains at least 150 ml
Which statement is false concerning capacitation of spermatozoa?
occurs after acrosome reaction
entails removal of a glycoprotein layer
it is a biochemical event of sperm maturation
changes occur in the female genital tract
What does make UTI more common in mid-aged females than in males?
short female urethra
pregnancy
vaginal colonization with enterobacteria
all the above
What causes pure testicular feminization is:
over estrogen synthesis
defective end-organ androgen response
extra X chromosome (XXY)
failure of genital ridge regression
Which hormone measures testicular germ cell function best?
LH
FSH
HCG
none of the above
What are the posterior relations of the kidneys?
quadratus lumborum and diaphragm
psoas and diaphragm
psoas and latissimus dorsi
transversus abdominus and paraspinous
Which class of the following diuretics could cause erectile dysfunction?
loop diuretics
thiazide diuretics
potassium sparing diuretics
osmotic diuretics
At what month of intra-uterine life do testes descend into the scrotum with the aid of the intra-abdominal pressure and the gubernacula?
sixth
seventh
eighth
ninth
To which group of lymph nodes do tumors at the anterior superior area of the bladder, first, drain?
hypogastric
internal iliac
external iliac
lateral sacral
What does apoptosis mean?
programmed cell death
new vascular formation
uninhibited neural stimulation
premature muscular contraction
Which statement is false concerning the dipstick method for detecting hematuria?
depends on the ability of hemoglobin to oxidize a chromogen indicator
negative results need to be confirmed by microscopic examination
has a sensitivity of 95% and a specificity of 75%
the presence of many epithelial cells suggests skin or vaginal contamination
What is the most significant complication of cyclosporine?
hepatic toxicity
renal toxicity
neural toxicity
cardiac toxicity
Which α- adrenergic receptor subtype mediates smooth muscle contraction of the prostate?
α1-A
α2-A
α1-B
α2-B
How many renal papillae are there in a typical kidney?
4 to 6
7 to 9
10 to 12
13 to 14
At which type of renal tubular acidosis (RTA), typically, potassium levels increase?
type 1
type 2
type 3
type 4
Which statement explains the first event in the micturition reflex?
opening of internal bladder sphincter
fall in urethral pressure
rise in intravesical pressure
cessation of sphincter EMG activity
Which group(s) of lymph nodes drain(s) the glans penis?
internal and external iliac
superficial inguinal
deep inguinal
superficial and deep inguinal
What is the most frequent anomaly associated with multicystic renal dysplasia?
ureteral atresia
vesicoureteral reflux
ureteropelvic junction obstruction
ureteral duplication
What is the most common cause of hematuria in men over 60 yrs.?
kidney stones
glomerulonephritis
BPH
bladder cancer
What vessels are located in the prostate neurovascular bundle?
Watson plexus
capsular arteries and veins
inferior vesical and midrectal vessels
Santorini plexus
When should a 70 yrs. man with 40 ml prostate volume, and total PSA of 2.0 ng/ml, go for a prostate biopsy?
if PSA reading had exceeded 2.7 ng/ml over 12 months
if free PSA reading was less than 0.4 ng/ml
if total PSA reading was greater than 8 ng/ml
any of the above
Renal blood flow is autoregulated by:
sympathetic nervous system
parasympathetic nervous system
urinary output
afferent arteriolar resistance
Branches of what artery travel under the endopelvic fascia form the prostate to the sidewall of the pelvis?
obturator artery
midrectal artery
inferior vesical artery
pudendal artery
Where do Cowper`s gland ducts drain into?
ejaculatory ducts
prostatic urethra
membranous urethra
bulbous urethra