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Micro Final 2013
n/a
46
Veterinary Medicine
Professional
05/03/2013

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Cards

Term
sexual differentiation hierarchy
Definition
1. chromosomal
2. gonadal
3. secondary internal and external genitalia
Term
genes that helps testes differentiate in male
Definition
SRY
Term
in the absence of SRY gene, the primitive gonad becomes...
Definition
an ovary
Term
what cause degeneration of Mullerian duct in males?
Definition
AMH made by sertoli cells
Term
what causes differentiation of wolffian duct in males?
Definition
testosterone produced by Leydig cells
Term
what does the wolffian duct become?
Definition
vas deferen, epididymis, and seminal vesicle
Term
in females, what does mullerian duct become?
Definition
uterus, cervix, upper 1/3 of vagina, and Fallopian Tubes
Term
where does external genitalia differentiate from?
Definition
lateral plate mesoderm
Term
where does prostate or lower vaginal vault differentiate from?
Definition
urogenital sinus
Term
what hormone regulates spermatogenesis?
Definition
FSH
Term
what hormone stimulates testosterone production by Leydig cells?
Definition
LH
Term
stages of sperm cell maturation
Definition
1. Spermatogonia--> always in contact with basal lamina
2. spermatocytes--> in some form of meiosis
3. spermatids--> luminal part of tubules, very small
4. spermatozoa--> head, neck, and tail
Term
main function of sertoli cells
Definition
mechanical and nutritive support for spermatogenic cells
Term
what epithelia lines the rete testis
Definition
low cuboidal to flattened
Term
what epithelium lines testicular efferent ducts?
Definition
cuboidal absorptive and cuboidal ciliated
Term
what epithelium lines the epididymis?
Definition
tall pseudostratified columnar with long apical stereocilia
Term
what do the apical stereocilia do?
Definition
absorb and secrete stuff
Term
vas deferens
Definition
highly folded mucosa lined by pseudostratified columnar epithelium
Term
what is the widened end of the vas deferens?
Definition
ampulla
Term
accessory glands of the male
Definition
1. ampulla
2. seminal vesicles
2. prostate
3. bulbourethral
4. urethral
Term
ampullary glands
Definition
branched tubulo acinar with simple columnar epithelium
Term
vesicular glands
Definition
pinnate papillary arrangement around a central duct
Term
prostate
Definition
2 parts: disseminated and body
highly folded mucosa with serous and mucous secretions
cuboidal to low columnar epithelium
Term
bulbourethral glands
Definition
low columnar to pyramidal epithelium that have basophilic cytoplasm
Term
penis types
Definition
1. fibroelastic
2. vascular
Term
3 columns of erectile tissue
Definition
2 large dorsal columns of corpora cavernosum
ventral column of corpus spongiosum around urethra
Term
primordial follicle
Definition
oocyte surrounded by simple squamous epithelium
Term
primary follicle
Definition
oocyte surrounded by single layer of cuboidal epithelium
Term
secondary follicle
Definition
oocyte has a zona pellucida
stratified epithelium
increase in fluid that can fragment epithelium
Term
tertiary follicle
Definition
antral cavity
a lot of epithelial layers
oocyst surrounded by cumulus oophorus
zona pellucida present
Term
mature (graafian follicle)
Definition
bulges on the surface and forms a stigma
Term
corpora hemorrhagicum
Definition
blood filling the ruptured follicle
Term
corpora luteum
Definition
granulosa and thecal cells collapse into a ruptured follicle and luteinize to become luteal cells
Term
the degeneration of follicles
Definition
follicular atresia
Term
what are the changes of the oviduct epithelium?
Definition
1. kinociliated columnar
2. stratified columnar with kinocilates
2. cuboidal with non-ciliated peg cells
Term
are there glands in the oviduct?
Definition
NO!
Term
3 parts in cross section of a uterus
Definition
1. endometrium
2. myometrium
3. perimetrium
Term
foci in uterus with no glands and a lot of vessels (ruminants)
Definition
caruncular sites
Term
what layer does the uterus NOT have?
Definition
submucosa
Term
what separates the layers of the myometrium?
Definition
stratum vasculare
Term
where are glands in the vulva?
Definition
1. muscularis (major vestibular)
2. submucosa (minor glands)
Term
Which estrus stage is characterized by FSH, ovarian follicle maturation, estrogen production, hypertrophy of uterine luminal epithelium, and increase mural vasculature?
Definition
proestrus
Term
which stage of estrus is characterized by:
peak estrogen
decreasing FSH
LH increase
ovulation
proliferation of uterine glands
max vasclarity
proliferation of vaginal epithelium?
Definition
estrus
Term
what stage of estrus is characterized by:
decreasing estrogen
increasing progesterone
minimal LH
formation of corpus luteum
proliferation and coiling of uterine glands
uterine stromal edema decreases?
Definition
metestrus
Term
what stage of estrus is characterized by:
max progesterone
maturation or degeneration of CL
max coiling of uterine glands
non-cornified vag?
Definition
diestrus
Term
what stage of estrus is characterized by:
low levels of estrogen and progesterone
quiescent and normal morphology of repro tract?
Definition
anestrus
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