Repro Flashcards
Where does fertilization occur?
Ampullary Isthmic Junction (AIJ)
What is the function of testes?
produce male gamete (sperm/spermatoza)
produce male hormones (testosterone)
What is Cryptorchid?
testes do not descend
bilateral: both are retained (sterile)
Unilateral: one is retained (fertile)
Heat Regulation of Testes
should be 4 degrees celsius below body temperature
What does the epididymus do?
transport spermatozoa
concentration of sperm
storage of sperm
maturation of sperm
What are the accessory glands?
*contribute to fluid volume of semen
Vesicular Glands
Prostate Gland
Cowpers Gland (Bulbourethral)
Testosterone Production
released by leydig cells in male
(gonads/testes)
What structure produces progesterone?
Corpus luteum
Progesterone
maintains pregnancy
inhibits repro behavior
inhibits GnRH release
secretions (prep uterus to receive embryo
Luteinizing Hormone (LH)
ovulation
formation of corpora lutes
progesterone secretion
Follicle Stimulating Hormone (FSH)
follicular development
estradiol synthesis
Prostaglandin
regression of CL (luteolysis) and ovulation
causes uterine contractions at parturition or for cleansing the uterus
Oxytocin
milk letdown
released during parturition to cause uterine contractions
smooth muscle contraction
What is estrogen?
female sex hormone responsible for behavior during estrus and activity of reproductive tract
What is the preferred method of AI in cattle?
rectocervical
