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What’s with the Hormones?: Endocrine Function of Female Reproduction. Cassie Burrows. A diagram of a cows endocrine glands. Courtesy of http://nongae.gsnu.ac.kr/~cspark/teaching/chap4.html. Introduction. What are hormones?
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What’s with the Hormones?: Endocrine Function of Female Reproduction Cassie Burrows A diagram of a cows endocrine glands Courtesy of http://nongae.gsnu.ac.kr/~cspark/teaching/chap4.html
Introduction • What are hormones? • Chemicals secreted by the body that control and regulate body function!
Introduction • How are hormones secreted in the body? • Endocrine Glands • Ductless and secreted directly into the bloodstream • Exocrine Glands • Secretions released into ducts that lead to body surface or to cavities and their surfaces within the body
Trivia! • What organ in the body is both an endocrine gland and an exocrine gland? The Pancreas!
Primary Hormones of Female Reproduction • Estrogen • Follicle Stimulating Hormone • Luteinizing Hormone • Gonadotropin Releasing Hormone • Oxytocin • Progesterone • Prostaglandin
Estrogen Man applying back pressure to sow to see if she is in standing heat • Endocrine Gland • Ovaries • Function • Causes the estrus behavior
Follicle Stimulating Hormone • Endocrine Gland • Anterior Pituitary • Function • Growth and Maturation of follicles • Used in Superovulation
Luteinizing Hormone • Endocrine Gland • Anterior Pituitary • Function • Causes ovulation • Works with FSH in follicular development • Used to treat follicular cysts
Gonadotropin Releasing Hormone • Endocrine Gland • Hypothalamus • Function • Same function as LH; LH>GnRH • Use to treat follicular cysts over LH! • Causes release of FSH and LH
Oxytocin • Endocrine Gland • Hypothalamus • Function • Expulsion of Retained Placenta • IN FIRST 24 HOURS • Milk Letdown
Progesterone • Endocrine Gland • Placenta and Corpus Luteum • First the CL and then the Placenta • Function • Maintenance of pregnancy • Inhibits heat • Estrus Synchronization
Prostaglandin • Endocrine Gland • Endometrium • Function • Luteolytic • Induction of Labor • Estrus Synchronization • Retained Placenta’s • AFTER 24 HOURS
And that’s the Birds and the Bees… http://www.partners-in-reproduction.com/images/feedbackfemale.jpg