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Female Uterus Types
Duplex
Bicornuate
Simplex
Duplex
Example: Rabbit
Description: 2 cervices, no uterine body
Bicornuate
Example: Cow, sow, mare
Description: 1 cervix, uterine horns
Simplex
Example: Primates
Description: 1 cervix, no horns
Cow
1 cervix
uterine horns
Mare
Smooth Cervix
Sow
Large uterine horns
Oviduct
Site of fertilization (ampullary-isthmic junction)
Follicle
maturing egg
corpus luteum
- a temporary endocrine gland that forms in the ovary after ovulation
- progesterone
corpus albicans
- a small, whitish scar in the ovary that forms from the degeneration of the corpus luteum when a released egg is not fertilized
- regressed CL
Male Anatomy: Testes
Gametogenic (sperm)
Endocrine (testosterone)
Epididymis
Storage & maturation of sperm
Penis types
fibroelastic and vascular
Fibroelastic
bull, boar, and ram; has a sigmoid flexure
Vascular penis
Stallion, man, dog
Accessory glands
Add fluids and nutrients
Puberty
Sexual maturity onset
Estrus
Standing heat (female is receptive to male)
Estrous Cycle
Time between heats (~21 days)
Gestation
pregnancy (process of fertilization -> birth)
Parturition
Act of giving birth
Cow (estrous cycle)
Cycle: 21 day
Estrus: 18 hr
Gestation 283 days
Ewe (estrous cycle)
Cycle: 17 day
Estrus: 30 hr
Gestation: 147 days
Sow (estrous cycle)
Cycle: 21 day
Estrus: 60hr
Gestation: 115 days
Mare (estrous cycle)
Cycle: 22 day
Estrus: 7 day
Gestation: 343 days