Reproductive System (1-4) Flashcards
this is an individual possessing gonadal tissue of both sexes due to failure of embryological differentiation of gonads which leads to the presence of both ovarian and testicular tissue (combined into an ovotestis or one gonad of each type)
true hermaphrodite
this is when sex chromosomes and gonads are of one sex but the ducts and external genitalia are modified towards, or are of, the opposite sex;
classed by sex of gonadal tissue
pseudohermaphrodite
this is genetically female calf born co-twin with a male calf;
TDF, MIS and testosterone enter the female twin’s circulation via the placental anastomosis and impairs normal female gonadal development
Freemartinism
name 6 possible morphological features in a female affected by freemartinism
- normal external genitalia
- enlarged clitoris, long tufts of hair around vulva, skin fold from groin to umbilicus
- hypoplastic vagina, vulva and vestibule
- underdeveloped uterus
- underdeveloped mammary gland
- stunted ovaries
name 3 congenital abnormalities of the ovaries
- ovarian agenesis or duplication
- ovarian hypoplasia
- cysts
name 2 types of acquired ovarian cysts
- follicular
- luteinized
name the type of acquired ovarian cyst
Failure of follicle to ovulate due to failure of LH release;
may secrete oestrogen and can affect cyclic activity/behaviour;
may also cause changes in the rest of reproductive tract
follicular cysts
name the type of acquired ovarian cyst
Failure to ovulate but cyst partially luteinised (thicker wall);
Usually no oestrogen production but if multiple in sows may cause infertility
luteinized cysts
this means inflammation of the ovaries
oophoritis
name 3 types of ovarian neoplasia
- germ cell origin
- from gonadal stroma
- tumors of surface epithelium
this is the most common type of ovarian neoplasia (esp. in mare and cow);
Encapsulated, nodular white grey surface; may be cystic ± haemorrhage; Often secrete oestrogen/progesterone/testosterone and may cause anoestrus, persistent oestrus or male behaviour
granulosa-theca cell tumor
name the two main conditions of uterine (fallopian) tubes
- obstruction
- inflammation
name the term
uterine tubes distended with mucus secretions
hydrosalpinx
name the term
inflammation of the uterine (fallopian) tubes
salpingitis/pyosalpinx
name 3 pathologies of the uterus due to abnormal position/location
- torsion
- prolapse
- rupture
name 3 endometrial changes that cause patholgy of the uterus
- atrophy
- hyperplasia
- endometrial polyps
name the term
inflammation of the endometrium
endometritis
name the term
inflammation of the whole uterine wall
metritis
name the term
inflammation of the fetal attachment point of the uterine wall
placentitis
name the term
chronic endometritis (mare)
endometrosis
name the term
chronic suppurative infection with accumulation of pus in the uterine lumen
pyometra
name 6 possible sequelae of endometritis
- ascending infection
- descending infection
- septicemia
- embolic spread
- chronic endometritis
- pyometra
most bitches with pyometra will also have this associated disease which occurs due to oestrogen priming followed by elevated progesterone
cystic endometrial hyperplasia
name the term
accumulation of fluid in the uterus due to endometrial hyperplasia or proximal to an obstruction in the uterus, cervix or vagina
hydrometra
name the term
accumulation of mucus in the uterus due to endometrial hyperplasia or proximal to an obstruction in the uterus, cervix or vagina
mucometra
name 2 types of neoplasia in the uterus
- uterine carcinoma
- leiomyoma
name 4 common pathologies of the vagina and vulva
- congenital defects
- swelling
- trauma
- inflammation
name the term
inflammation of the vulva and vagina
vulvo-vaginitis
name 4 common types of vagina and vulva neoplasia
- sqaumous cell carcinoma
- canine transmissible venerea tumor
- melanotic tumors
- vaginal leiomyoma
name 8 non-infectious conditions of the pregnant uterus that cause pathology
- rupture
- ventral herniation
- adventitial placentation
- hydramnios & hydroallantois
- prolonged gestation
- twinning
- post parturient hemorrhage
- umbilical cord torsion
this accumulation of excess fluid is associated with fetal abnormalities (esp. facial ones)
hydroamnios
this accumulation of excess fluid is seen with adventitial placentation or twin pregnancy
hydroallantois
this is generalized oedema and may occur in the fetus due to hydramnios or hydroallantois
anasarca
the absence of this in the fetus can cause prolonged gestaston due to failure of release of foetal corticosteroids and failure of induction of parturition
pituitary gland
this is when the fetus dies but the corpus luteum is retained and there
is no bacterial infection;
fetal fluids are resorbed and the fetus is retained as black leathery mass
mummification
this occurs when dead fetal tissue is invaded by gas forming bacteria (clostridia)
emphysema
this is fetal death before the fetus is considered viable
abortion
this is fetal death after the fetus is considered viable
stillbirth
name 4 infectious diseases of pregnant uterus that may cause of pregnancy failure
- endotoxins or pyrexia
- immediate placentitis
- delayed placentitis
- direct damage to fetus due to viruses
name 4 viruses that cause abortion
- herpes viruses
- bovine viral diarrhea virus
- border disease virus
- porcine parvovirus
name 5 bacterial causes of abortion
- Brucella abortus
- Listeria spp.
- Capylobacter fetus or C. jejuni
- Chlamydophila abortus
- Coxiella burnetti
name 2 protozoal causes of abortion
- Toxoplasma gondii
- Neospora caninum
Name the 8 main causes of ovine abortion
- Toxoplasma
- Enzootic abortion (by Chlamydophila abortus)
- Salmonella
- Tick borne fever (Anaplasma phagocytophilum)
- Border disease
- Listeria
- Q-fever (Coxiella burnetti)
- Campylobacter
(TESTBLQC) - ‘test block’