Which part of the prostate prevents the seminal fluid from entering the bladder during ejaculation?
central zone
peripheral zone
preprostatic tissue
anterior fibromuscular stroma
Correct Answer :
C. preprostatic tissue
the preprostatic tissue is located proximal to the verumontanum and composed of sphincter-like cylindrical smooth muscles that prevent retrograde ejaculation.
Related Questions
Where is the centre of reflex erection located at?
the brain cortex
the sacral cord
the lumbar cord
the hypothalamus
Which disease is described best by the following manifestations: grand mal epilepsy, mental retardation, hypertension, angiomyolipoma, adenoma sebaceum, bilateral enlarged kidneys, and normal renal function?
autosomal dominant polycystic kidney disease
von Hippel-Lindau disease
tuberous sclerosis
Sturge-Webber syndrome
Between which 2 fascial planes does the prostatic neurovascular bundle travel?
prostatic fascia and levator fascia
prostate capsule and prostatic fascia
Denonvilliers fascia and prostate capsule
Denonvilliers fascia and endopelvic fascia
Which zone of the prostate originates from the Wolffian duct tissue:
central zone
peripheral zone
transitional zone
periurethral glands
What causes pure testicular feminization is:
over estrogen synthesis
defective end-organ androgen response
extra X chromosome (XXY)
failure of genital ridge regression
What are the posterior relations of the kidneys?
quadratus lumborum and diaphragm
psoas and diaphragm
psoas and latissimus dorsi
transversus abdominus and paraspinous
Which statement is NOT related to Klinefelter syndrome?
sterility is the rule
has a considerable short life span
treatment requires testicular microdissection and sperm extraction
47 XXY karyotype
Which microbe causes red diaper syndrome?
Serratia marcescens
Streptococcus pyogenes
Clostridium difficile
Staphylococcus saprophyticus
Which of the following is (are) direct branch(es) of the abdominal aorta?
median sacral artery
inferior phrenic arteries
gonadal arteries
all of the above
Which type of renal tubular acidosis (RTA) is more likely to form renal stones?
type 1
type 2
type 3
type 4
Which part of the prostate prevents the seminal fluid from entering the bladder during ejaculation?
central zone
peripheral zone
preprostatic tissue
anterior fibromuscular stroma
Which statement is true about the female urethra?
harder to catheterize when compared to the male urethra
4 inch long
opens into the vestibule below the clitoris
gets wider at the post-menopausal age
Which of the renal artery occlusive conditions, commonly, do NOT affect renal function?
intimal fibroplasia
medial fibroplasia
medial hyperplasia
serosal hyperplasia
What helps in treating Candida albicans cystitis is:
sodium bicarbonate
phyto soya
ascorbic acid
sol palmetto
From where does the main parasympathetic efferent innervation to the pelvic plexus arise?
S1
S2-S4
T11-L2
L3-S1
What is false concerning the collecting system structures of a typical kidney?
the renal pelvis could be intra or extra renal
the renal pelvis divides into 2 or 3 major calyces
major calyces divide into 2 or 3 minor calyces
unlike lateral calyces, polar calyces are often paired
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
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
All of the following develop from the mesonephric ducts, EXCEPT:
vas deferens
seminal vesicles
appendix epididymis
appendix testis
Which of the following hormones, primarily, controls spermatogenesis?
GnRH
testosterone
LH
FSH
All of the following conditions are related to obesity syndrome, EXCEPT:
super fertility
increase aromatization reaction
increase resistance to circulating insulin
sleep apnea
Which drug does NOT result in urinary retention?
terazosin, antihypertensive
benzodiazepines, psychotropic medicine
levodopa, anti-Parkinsonism medicine
brimonidine, glaucoma eye drops
In utero, which hormone stimulates the development of the prostate gland?
estradiol
DHT
FSH
testosterone
What is the most likely diagnosis of an erectile dysfunction patient with low plasma testosterone and high prolactin levels?
pituitary adenoma
adrenal adenoma
Kallmann syndrome
Klinefelter syndrome
The majority of circulating testosterone is:
bound to sex hormone-binding globulin
free
bound to α1-antichymotrypsin
bound to albumin
Which of the following does NOT increase in prostate cancer?
human kallikrein 2
pro-PSA
free PSA
complexed PSA
Which statement is false concerning microhematuria?
malignancy is identified in patients presenting with microhematuria more than in patients presenting with gross hematuria
microscopic hematuria is defined as > 3 red blood cells per high powered field (RBC/hpf) on a single specimen
warrants full hematuria workup
history of cigarette smoking is of significance
Which type of urinary casts are solidified TammHorsfall mucoproteins secreted from the tubular epithelial cells of individual nephrons?
granular
hyaline
waxy
pigment
What are the first and second most common zones from where prostate cancers arise?
central then transitional
peripheral then transitional
peripheral then central
transitional then central
What could render red urine workup, false positive for hematuria?
dehydration
myoglobinuria
high doses of vitamin C
all of the above