Reproductive Anatomy- Lecture 2 Flashcards
Testes
gametes and hormones (testosterone)
Infundibulum
Holds the fimbriae and is able to help “catch” the ovulated egg
Bicornuate uterus
Poor to moderately developed uterine horns. Seen in mares and cows or Highly developed uterine horns. Seen in dogs, cats, sows
Board ligament
Supports uterine track. Made up of: mesometrium, mesosalpinx, mesovarium.
Penis
copulatory organ and semen deposition
Epididymides
sperm maturation and transport
Os
An opening. Examples: os penis, os external cervix
Pampiniform plexus
network of many small veins found in the spermatic cord
Uterus
environment for sperm transport, embryogenesis and attachment of the conceptus
Vas deferens
Functions to transport sperm. Attached at tail of epididymus
Sigmoid flexure
An S shaped curve in the penises of rams and bulls.
Accessory sex glands
production of seminal plasma
Pelvic urethra
semen transport
Simplex uterus
No uterine horns. Seen in primates
Polytocous
Litter bearing animals
Monotocous
Animals bearing only one offspring at a time. Twins and triplets a rarity
Oviducts
environment for fertilization and development of the embryo
Non-equine vs equine ovary makeup
Non-equine: cortex on outside, medulla on inside Equine: cortex on inside, medulla on outside. with ovulation fossa
Prostate
All species we study in reproduction have prostates.
Spermatic cord
Testicular artery, vein, and nerve. Ductus deferens. Cremaster muscle. Lympathic tissue. Pampiniform plexus.
Layers of testis (superficial to deep)
visceral layer of tunica vaginalis tunica albuginea (capsule of testis) seminiferous tubules mediastinum testis (aka: hilum of testis)- efferent ductules and rete testis
Ampulla vs. Isthmus
Parts of uterine tube. Ampulla has a much wider diameter then the isthmus portion
Ovaries
gametes and hormones
Cervix
mucus secretion (estrus); cervical seal ( during pregnancy)
Vagina
copulatory organ
Follicle to Corpus Albicans
primordial follicle, primary follicle, secondary follicle, antral follicle, corpus luteum, corpus albicans
Ovarian bursa
a pouch formed by the mesosalpinx and the mesovarium that encloses the infundibulum of the uterine tube and the ovary. It is shallow in the mare and does not enclose the ovary. It is capacious in sows and deep with a fat-filled wall in the bitch.
External genitalia
Vulva between dorsal and ventral commissure. Cuntaneous bridge is the space between the vulva and anus.
Fimbriae
Finger-like projections from the infundibulum that “catch” the egg and direct it toward ovarian bursa
