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Reproductive Systems - Female Reproduction II
Fichas del conjunto (20)
- 1Roles of oestrogenEssential for ova maturation + release
Transport of sperm from vagina to fertilisation site
Establishment of female 2' sex. chara
Breast development in preparation for lactation - 2Roles of progesteronePrep endometrium for fertilised embryo implantation
Contributes to breast's ability to produce milk - 3Oogenesisoogonia
1' oocyte
2' oocyte
ovum - 4Follicle developmentprimordial
- 5Hormone release and sexual developmentJust prior to puberty GnRH release from hypothalamus
LH+FSH released from A.P.
Stims ovaries to stim. follicular development
Developing follicles release oestrogen - 6Why growth spurt?^ adrenal androgens
- 7MenarcheWhen sufficient GnRH/LH/FSH present
- 8Menstrual cycle - follicular phase14/28 days
Maturation of follicles
Follicles produce Oestrogen - 9luteal phase28/28
Characterised by presence of corpus luteum
C.L. produces progesterone and oestrogen - 10Hormonal changes during follicular phaseovarian hormones
A.P. hormones - 11A.P. hormonesFSH+LH ^ due to GnRH
This stim. o release from follicle
O stim. follicle development - 12What type of signalling is that?Autocrine - O + more O
- 13Rising O- FSH, tells A.P. follicle is developed enough
Tonic LH remains the same - 14What other hormone inhibits O?Inhibin
Peptide follicle hormone - 15How does O stim. O?By +FDBCK
- 16Hormone feedback cycleHypothalamus
GnRH
A.P.
FSH/LH cells
FSH/LH
Ovary
Follicular development
Rising moderate O levels/ High O/ Inhibin - 17Luteal SurgeHigh O + A.P. to produce large amounts of LH
Surge of LH causes follicle surge and release of oocyte from ovary
Ovary enters oviduct and may/may not be fertilised - 18C.L. post fertilisationProduces O +progesterone
This - LH/FSH release from A.P.
~10 days C.L. degenerates to C.A. - 19Effect on FSH/LHNo longer inhibited by prog + o, new cycle begins.
- 20C.L. functionsRelease oestrogen for endometrium thickening
Release progesterone for endometrium development and maintenance
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- El usuario ha eliminado su información de asignaturas Fichas sobre Reproductive Systems - Female Reproduction II, creado por Usuario eliminado el 05/04/2018.
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- Creado por J yadonknow · 5 abr 2018
- Copiado por J yadonknow · 5 abr 2018
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