Learning Issues The Equine Reproductive System and Perineum Flashcards
boundaries of pelvic cavity
cr: pelvic inlet
cd: pelvic diaphragm muscles (levator ani and coccyges)
lateral border: body of ilium, origins of pelvic diaphragm muscles, sacrosciatic ligaments, and muscles that overlie the ligament
Dorsal: sacral and first few cd vertebrea
ventral: publis
pelvic inlet boundaries
Dorsally :promontory of the sacrum
Laterally: ilium
Ventrally: pubis
cd extent of peritoneal cavity
boundaries for peritoneal cavity same as for abdominal cavity except caudally
caudal boundaries: pararectal fossa, rectogenital pouch, vesicogenital pouch, pubovesical pouch
pubovesicle pouch
bladder -> pelvis, split by median ligament of the bladder
rectogenital pouch
space between rectum and reproductive organs (vagina or genital fold)
pararectal fosse
dorsal body wall/ pelvis? and rectum
vesicogenital pouch
lies between uterus and vagina (or genital fold) dorsally and the bladder ventrally and lateral ligaments of the bladder laterally
Gross structures of female reproductive tract
ovaries, uterine tubes, uterus, cervix, vagina, vestibule, vulva
ovaries
dorsally locales, anchored to dorsal body wall by mesovarium; horse has big ovarian bursa and ovulation fossa (ovulate 1 follicle at a time); ovary is heart shapped
uterine tubes
carry egg to uterus
broad ligament
mesovarium, mesosalpinx, mesometrium
remnants of the gubernaculum
proper ligament of the ovary and round ligament of the uterus
ovarian bursa borders
mesosalpinx and mesovarium
proper ligament of the ovary
found on free edge of mesovarium running from ovary to uterine horn
round ligament of the uterus
in free edge mesometrium
mesovarium
suspends ovary
mesometrium
suspends uterus (body and horns)
mesosalplinx
suspends uterine tubes
Blood supply female reproductive tract
aorta ->
- Ovarian- supplies ovary, mesovarium
- External iliac ->
2a. Uterine- supplies uterus, mesometrium
2b. Deep femoral ->pudendoepigastric trunk -> external pudendal (inguinal canal, blood supply to mammary gland) - Internal iliac -> internal pudendal -> vaginal -> uterine branch of vaginal (uterus blood supply, mesometrium)
collateral circulation of uterus
aorta -> external iliac -> uterine
aorta -> internal iliac -> internal pudendal -> vaginal -> uterine branch of vaginal
mammary gland of the mare
lactiferous ducts -> lactiferous sinus (gland sinus -> teat sinus)-> teat canals -> teat orifices
lactiferous sinus
made up of glands sinus (found within mammary gland itself) and teat sinus (found within teat)
teat canals other name
papillary ducts
teat orifces
two orifices per teat