Section 1
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sex cords aka
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Last updated
6 years ago
Date created
Mar 1, 2020
Cards (126)
Section 1
(50 cards)
sex cords aka
seminiferous tubules
Sertoli cells are specifically derived from
sex cords
encodes for testis determining factor (TDF)
Sry
responsible for female reproductive organs
paramesonephric duct/mullerian duct
testosterone aka
androgen
Sry is linked to
Y chomosome
prostate gland is derived from
endoderm
prostatic utricle is associated with (4)
Downs syndrome Hyposapdius low MIF resistence to MIF
seen as hyperechoic on ultrasound
stones lipoma
fate of paramesonephric duct in males
regression
2 cells of testis
Leydig cell Sertoli cell
TDF (testis determining factor) inhibits
Dax-1
structures in males formed by mesonephric duct
paradidymis epididymis vas deferens seminal vesicle ejaculatory duct
paramesonephric duct aka
mullerian duct
coelomic epithelium is derived from
peritoneum
prostatic utricle is analogous to a females
vagina
testis develop during week
7
testosterone is secreted from
leydig cells
pathway to inhibit female signal to produce testis
Y chrom with Sry encoding TDF which inhibits Dax-1 forming testis
seen as hypoechoic on ultrasound
tumor/neoplasm
Mullerian inhibiting factor causes regression of
paramesonephric duct
testosterone is converted into
dihydrotestosterone
efferent ductules are derived from
peritoneum
seminal colliculus is analogous to a females
hymen
seen as anechoic on ultrasound
cyst vessels gall bladder
remnants of mullerian duct in males (3)
appendix testis prostatic utricle seminal colliculus
responsible for male reproductive organs
mesonephric/Wolffian duct
testosterone stimulates formation of
Mesonephric duct
Sertoli cell is derived from
peritoneum
stertoli cells secrete (2)
Mullerian inhibiting factor androgen binding protein
stimulating factor for Wolffian duct
testosterone
hyperechoic cysts with keratin
epidermoid cyst
seen as isoechoic on ultrasound
solid organ (thyroid nodule, lymph node)
ovary determinant
DAX-1
Leydig cells secrete
Testosterone
blood testis barrier of the seminiferous tubules
Sertoli cell
Sertoli cells secrete _______ which stops formation of female reproductive organs
mullerian inhibiting factor
promotes regression of mullerian duct in males
MIF
3 things that promote formation of indifferent gonads
WT-1 SF-1 Lim-1
indifferent gonads are derived from
intermediate mesoderm
germ cells migrate to testis causing formation of ________ from _________
sex cords from coelomic epithelium
mesonephric duct aka
Wolffian duct
seminiferous tubules are derived from
peritoneum
appendix epididymis is derived from
mesonephric duct
transports testosterone
androgen binding protein
Dax-1 is linked to
X chromosome
rete testis is derived from
peritoneum
anechoic cyst
epididymal cyst
Leydig cells are derived from
fibroblast
sertoli cells prevent noxious agents from reaching the ______
developing spermatogonia
Section 2
(50 cards)
3 structures that form external genitalia
genital tubercle genital/urogenital fold genital swelling
route of urinary infection to epididymis
via penis, through urethra, into vas deferens to testis
cause of congenital inguinal hernia
large patency of vaginal process
treatment for cryptorchidism
surgery after age 6 months
rx for testicular torsion
surgery
vasitis is associated with (2)
vasectomy urinary tract infection
surrounds anterior portion of testis
vaginal process
idiopathic cause of varicocele
valve failure of left side
converts testosterone to dihydrotestosterone
5a-reductase
before descent, testes are at _______ level
L1
how to evaluate a male for varicocele of scrotum
valsalva's manuver while standing
varicocele can lead to _____ and ______
atrophy sterility
appearance of intratesticular varicocele but no flow
tubular ectasia of rete testis
dihydrotestosterone promotes growth of what 3 structures
penis scrotum prostate
cryptorchid testis vs ectopic testis
crypto: moves along normal path but stops prematurely ectopic: passes through deep and superficial ring then moves to wrong location
sign on ultrasound with testicular torsion
whirlpool sign
froms the corpus spongiosum
ventral shaft
abnormal dilation of the pampaniform plexus veins
varicocele
muscle surrounding the corpus spongiosum
bulbospongiosus muscle
external genitalia is derived from
mesoderm
all external genitalia are covered with
surface ectoderm
epididymitis is often caused by
bacterial infection
pulls the testis into scrotum
gubernaculum
intratesticular cysts are associated with
spermatoceles
causes bell clapper syndrome
high riding process vaginalis with testicular torsion
how do microcalcifications appear on Ultrasound
hyperechoic foci
genital tubercle forms the
shaft and glans penis
descent of testes begins in
3rd month
anus and rectum are derived from
endoderm
how is seminoma visualized on ultrasound?
hypoechoic foci
vaginal process is derived from
peritoneum
3 layers surrounding testis (inner to outer)
tunica albuginea visceral layer of tunica vaginalis parietal layer of tunica vaginalis
forms hydrocele in testis of baby
small patency of vaginal process
muscle surrounding the corpus cavernosum
ischiocavernosus muscle
peritoneum in scrotum detaches and becomes
vaginal process
effect on vascularity in epididymitis
increased vascularity
genital swelling form the
scrotum
slow growing germ cell tumor
seminoma
secondary cause of varicocele in males
nutcracker syndrome
risk from cryptorchidism
testis cancer
closes the ventral surface of the penile urethra
genital fold
2 common causes of nutcracker syndrome
SMA blocking left renal vein 3rd part of duodenum blocking renal vein
tubular ectasia of rete testis is associated with (3)
spermatoceles epididylmal or testicular cysts epididymal obstruction
urorectal septum is derived from
mesoderm
cysts with keratin
epidermoid cyst
forms the corpus cavernosum
dorsal shaft
undescended testis aka
cryptorchidism
urethra is derived from
endoderm
when testis descends, it drags abdominal _____ into scrotum
peritoneum
epididymo-orchitis is caused by
bacterial infections
Section 3
(26 cards)