B. Major regulatory effects of ovarian steroids on hypothalamic-pituitary function. Estrogen decreases the amount of follicle-stimulating hormone (FSH)

Slides:

Advertisements

Similar presentations

MEN: feedback loop.

Advertisements

Female Hormone Regulation

The Menstrual and Ovarian Cycles

LE 46-9b Vagina Cervix Oviduct Ovaries Uterus Endometrium Follicles Corpus luteum Uterine wall.

Stage 1 – Menstruation Starts on Day 1 – lasts 3-7 days Hormones – travel in blood to target tissue – ALL 4 hormones at lowest levels Ovary – – Follicle.

Role of Hormones in Menstrual Cycle Anton, Barbara, Gabi.

Reproductive cycles. Stages and phases of the estrous cycle.

Estrous Cycle Topic 3096 C Amanda Trutsch. Estrus The period of mating activity in the female mammal Same as heat.

Hormones of the female reproductive cycle: Anterior pituitary gland: Follicle stimulating hormone (FSH): Stimulates growth of ovarian follicles, and estrogen.

Pituitary Gland FSH Primordial follicles Growing follicles LH.

Ovulation and Menstruation. Function of Menstrual Cycle Uterine walls thickens with rich blood supply in preparation for a fertilized egg If fertilization.

Menstrual Cycle. The Cycle Strongly linked to the endocrine system (hormone based) Typically takes 28 days to cycle through 4 phases ◦ Follicular ◦ Ovulation.

Menstrual Cycle Regulation

The Hormones GnRH = gonadotropin-releasing hormone FSH = Folicle-stimulating hormone LH = Luteinizing hormone Testosterone Estrogen Progesterone.

Accelerated Biology.  Some important vocabulary  Follicle – a cluster of cells that surrounds an immature egg and provides it with nutrients (where.

Reproductive Hormones Gonads Source of sex hormones: androgens estrogens progestins produced in different proportions by both males and females.

Reproductive System. The Male Reproductive System Testes Ducts Glands.

Human Reproductive Systems Chapter 50, section 3 only.

Organismal Development Part 4

9.4 Hormonal Regulation of the Reproductive System

Female Reproductive Cycle

Human ovulatory cycle n ~28 days in length n includes menses n ovulation occurs spontaneously n cycles occur throughout the year n one egg produced / month.

Biology 12 Unit 2: Reproduction and Development Female System.

Today Spermatogenesis Oogenesis Hormonal control of menstrual cycle Fertilization.

Hormonal Regulation 1.On day 1, rising GnRH levels (released from the hypothalamus) cause increased synthesis and release of FSH and LH from the anterior.

Chapter 9. THE HUMAN MENSTRUAL CYCLE Reid L. Norman, PhD Professor, Pharmacology and Neuroscience, TTUHSC.

 The Menstrual Cycle NURS 541 – Women’s Healthcare: Diagnosis and Management.

Uterine (Menstrual) Cycle

Chapter 46.4 and 46.5 Animal Reproduction.

Female Reproductive System

Synthesis and receptor interactions of active peptides generated by the kallikrein-kinin and renin-angiotensin systems. Bradykinin is generated by the.

Schematic diagram of idealized regimens using exogenous gonadotropins for fertility induction. A. Step-up regimen for ovulation induction. After menses,

Pharmacogenetics of warfarin dosing

Drug protocols for ovulation induction. A

Drug protocols for ovulation induction. A

Cocaine-induced changes in CNS dopamine release

The β adrenergic receptor (βAR)

Comparative success of therapy with proton pump inhibitors and H2 receptor antagonists. Data show the effects of a proton pump inhibitor (given once daily)

Sites of action of antifungal drugs

Receptor occupancy and clinical response for antipsychotic agents

Cardiac excitation-contraction coupling and its regulation by positive inotropic drugs. The cardiac cycle is initiated by membrane depolarization, which.

Hypothalamic–pituitary–target-organ axis

Changes in the ovarian follicle, endometrial thickness, and serum hormone levels during a 28-day menstrual cycle. P, progesterone; E2, estradiol; LH, luteinizing.

Reproduction-Related Disorders

Copyright © 2015 by the American Osteopathic Association.

Clinical use of PAH drugs based on functional class

Chemical structure of eteplirsen (Drugbank Accession Number: DB06014);43 IUPAC chemical name: (P-deoxy-P-(dimethylamino)](2',3'-dideoxy-2',3'-imino-2',3'-seco)(2'a→5')(C-m5U-C-C-A-A-C-A-m5U-C-A-A-G-G-A-A-G-A-m5U-G-G-C-A-m5U-m5U-m5U-C-m5U-A-G),5'-(P-(4-((2

Malaria-endemic countries. A. Eastern Hemisphere; B. Western Hemisphere. A country is shaded orange even if malaria is endemic in just a portion of that.

Dose-response relationships. A

Structure and function of blinatumomab. A

Pathways regulating autophagy

Reproductive Physiology Lecture 1 Hypothalamic-Pituitary-Gonadal axis

Mechanisms of action of established and experimental drugs used for the chemotherapy of mycobacterial infections. Approved drugs for the chemotherapy of.

Lecture 1 Hypothalamic and pituitary gonadal axis

Drug protocols for ovulation induction. A

Understanding Ovulation

Reproductive Anatomy of Female

Menstruation IF fertilization does NOT take place

Menstruation IF fertilization does NOT take place

Learning Intentions Describe the sequence of events in the ovarian cycle, with reference to the follicular phase, ovulation, and luteal phase. Describe.

Reproductive Hormones

Organismal Development Part 4

Genetic Differentiation 1. H-Y Antigen- Histocompatability Y antigen 1. Male specific antigen present on the surfaces of cells XY = H-Y antigen.

Menstrual Cycle.

1. FSH: Follicle-stimulating hormone; and LH: luteinizing hormone

A Chemical Signal Balancing Act

Regulation of the Reproductive System

Organismal Development Part 4

Nat. Rev. Nephrol. doi: /nrneph

Fig. 1. Image explaining the contraceptive effect of exogenous testosterone. In summary, it works by 2 mechanisms, decreasing intra-testicular testosterone,

Presentation transcript:

B. Major regulatory effects of ovarian steroids on hypothalamic-pituitary function. Estrogen decreases the amount of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) released (i.e., gonadotropin pulse amplitude) during most of the cycle and triggers a surge of LH release only at mid-cycle. Progesterone decreases the frequency of GnRH release from the hypothalamus and thus decreases the frequency of plasma gonadotropin pulses. Progesterone also increases the amount of LH released (i.e., the pulse amplitude) during the luteal phase of the cycle. Source: Estrogens and Progestins, Goodman & Gilman's: The Pharmacological Basis of Therapeutics, 12e Citation: Brunton LL, Chabner BA, Knollmann BC. Goodman & Gilman's: The Pharmacological Basis of Therapeutics, 12e; 2011 Available at: https://accessanesthesiology.mhmedical.com/DownloadImage.aspx?image=/data/books/1613/bru12_ch40_f003.png&sec=102161976&BookID=1613&ChapterSecID=102161957&imagename= Accessed: October 25, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved