Reproductive System, Pregnancy, Lactation and Development Flashcards
Anatomical Components of the female reproductive system
-Ligaments
-Ovaries
-Oviducts
-Uterus
-Cervix
-Vaginal
-Vulva
The female reproductive anatomy and function
-Broad Ligaments
-Ovaries
-Oviducts
-Fallopian Tubes
-Uterus
-Uterine horns
-Uterine Body
-Cervix
-Vagina & Vulva
What is the heat period?
-Cycle of events involving production of an ovum within ovaries
-Sequence of hormones from Anterior Pituitary & Ovaries
-Female hormones signal males that it is time for breeding
Intervals of the Estrus cycle
-Polyestrus
-Seasonally polyestrus
-Diestrus
-Monoestrus
Stages of the Estrus cycle
-Proestrus
-Estrus = heat
-Metestrus
-Diestrus
-Anestrus
Introduction to pregnancy
-Timing of multiple events
-Ovulation, Ejaculation, Fertilization
-Breeding/copulation
-Gestation
-Parturition
Spermatozoa
Spermatozoa
-Mature male sex cell, motile
-Transport of Spermatozoa
-Capacitation
-Acrosome
Pregnancy and development
-The Zygote = fertilized ovum
-Joining of Male & Female Pronucleus
-Haploid chromosomes
-Cleavage
-Implantation
Placenta
-Life support for developing offspring
Multiple layered fluid filled membranous sacs
-Amnion
-Allantois
-Chorion
Parts of the umbilical cord
-Umbilical arteries (2)
-Umbilical Vein (1)
-Urachus (1)
Four placental attachment types
-Diffuse
-Cotyledonary
-Zonary
-Discoid
What is gestation?
Period from fertilization of an ovum to delivery of the new born
What 3 segments does gestation occur in?
-First trimester
-Second trimester
-Third trimester
Examples of differing species gestation length
-Dogs: 58-68 days
-Cats: 58-67 days
-Horses: 320-340 days
-Cattle: 278-283 days
-Sheep: 142-145 days
What is parturition?
-Parturition = Birthing Process = Labour
-Many triggers to start process
-Changes to fetus after birth
