Reproduction Flashcards
reproductive tract can be divided into what 2 groups?
whats in each group?
Arms: ovary, oviduct, horns
Trunk: Uterine body, cervix, vagina, vulva
what organs heavily regulate hormones for reproduction
pituitary and hypothalamus
parts of broad ligament, and what they attach to
mesometrium: uterus
mesovarium: ovaries
mesosalpinx: oviducts
what is the master organ of the reproductive tract
ovaries
what might indicate that a mare is in transition to breeding season
hair coat sheds
sections of the oviducts
infundibulum
ampulla
isthmus
uterotubal junction
what is the endometrium
-inner glandular layer of uterus
how does the tightness of the cervix indicate stage of estrous
Tight: diestrus or pregnant
flaccid: estrus
what organ is often referred to as the “little volcano”
cervix
what forms the hymen
transverse fold/urethral orifice
what is the normal state of the vagina? when is this state changed?
-normally collapsed
-except during breeding and foaling
what is the vestibulovaginal ring
-junction of vagina and vestibule
-forms a seal to keep out foreign material
where is the hypothalamus and pituitary gland located
Hypothalamus: base of the brain
Pituitary: ventrally to the hypothalamus
neurons from hypothalamus pathway from anterior vs posterior pituitary
anterior: stimulate or inhibit release of other hormones
pituitary: enter blood vessels to travel throughout the body to function as hormones
what acts as the middle man between nervous and endocrine systems
hypothalamus
reproductive hormones from posterior pituitary
oxytocin
reproductive hormones from anterior pituitary
Gonadotropic hormones
prolactin
what are the gonadotropic hormones
Luteinizing hormone(ovulation)
Follicle Stimulating Hormone
GnRH
signs of estrus
squatting
raising tail
urinating
winking
leaning and backing up towards the stallion
T/F TB farms tease and breed their mares every day
How often do QH farms?
TRUE
QH do it every other day
how long can sperm survive in the mare
48 hours
what is determined by ultrasounds
cervical, uterine, and ovarian tone