NURS 2090 Lecture Notes - Seminiferous Tubule, Basal Body, Biomarker

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Published on 16 Apr 2013
School
Dalhousie University
Department
Nursing
Course
NURS 2090
Altered Reproductive Function
1. Female Reproductive Function: External Genitalia:
Mons pubis, labia majora/minora, vestibule, skene glands/bartholin glands for lube.
2. Female Reproductive Function: Internal Structures
Estrogens
Progesterone
FSH
LH
Organ development, fat
distribution, breast
development
Secreted during
ovulation- menses from
CL
Production of follicles
LH surge releases the
follicle
Ovulation, etc
Thickens endometrium
Oxytocin
Prolactin
Cervical mucous
alterations
Maintains pregnancy by
relaxing smooth
muscles
Posterior Pituitary,
contractions and milk
ejection (let down during
lactation)
Anterior Pituitary, to
allow lactation to
occur
Skin maintenance, bone
Resorption
Elevates core temp
Retention of Na +H2O
Produces NV,
constipation, indigestion
during pregnancy
Uterus:
1.Inner endometrium: sloughed
during menses.
2. muscular myometrium
3. outer perimetrium
Ovaries: Estro/Progesterone/Andro
1. Stoma: supporting tissue
2. Interstitial cells: secrets estrogen
3. Follicles: ova/germ cells
4. Corpus Luteum: forms after the
ovum has been released from ovarian
follicle
Pregnancy:
hCG from zygote which acts on CL
to maintain progesterone/estro
Prolactin/ Oxytocin
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Ovulation
1. Follicular phase:
About 10 primary inactive follicles are stimulated by FSH/LH and become active
secondary follicles.
Secondary enlarge and secrete estrogen/progesterone.
One becomes dominant and the rest atrophy (atretic)
Dominant continues to secrete estrogen which alerts pituitary to stop FSH production
(↓FSH)
LH levels remain elevated and reach a LH surge (at the peak of estrogen secretion
from the dominant follicle)
This LH surge allows the follicle to be released (ovulation)
2. Luteal phase:
Ruptured follicle forms a Corupus Luteum (CL), which secretes
estrogen/progesterone
If pregnancy: progesterone from CL supports pregnancy until placenta developed
If no pregnancy the progesterone/estrogen decrease and menses begins
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Endometrial Growth
1. Proliferative phase:
End of menstruation- ovulation
Estrogen supports the proliferation of the superficial layer of the endometrium
Its thin after menstruation then grows 6-8 X
2. Secretory phase:
Ovulation- beginning of menses
Progesterone/estrogen proliferate endometrium
Lining becomes thick and vascular
Ovum can now embed
3. Menstrual phase:
Absence of fertilization CL is useless. Disintegrates
Therefore decline in estrogen/progesterone
Shedding and menstruation.
** If the woman has issues with infertility it could have something to do with FSH/LH levels
(especially with someone older, as the menses has slowed and the body wants to force it to
continue, which creates higher than normal of both hormones).
** Temperatures rise during the LH surge and ovulation kits are what evaluate this hormone, as
you will have about 24 hours to get pregnant. The increase in temp is only about 1 degree
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Document Summary

Altered reproductive function: female reproductive function: external genitalia: Mons pubis, labia majora/minora, vestibule, skene glands/bartholin glands for lube: female reproductive function: internal structures. 1. inner endometrium: sloughed during menses: muscular myometrium, outer perimetrium. Ovaries: estro/progesterone/andro: stoma: supporting tissue, interstitial cells: secrets estrogen, follicles: ova/germ cells, corpus luteum: forms after the ovum has been released from ovarian follicle. Pregnancy: hcg from zygote which acts on cl to maintain progesterone/estro. Posterior pituitary, contractions and milk ejection (let down during lactation) About 10 primary inactive follicles are stimulated by fsh/lh and become active secondary follicles. One becomes dominant and the rest atrophy (atretic) Dominant continues to secrete estrogen which alerts pituitary to stop fsh production ( fsh) Lh levels remain elevated and reach a lh surge (at the peak of estrogen secretion from the dominant follicle) This lh surge allows the follicle to be released (ovulation: luteal phase: Ruptured follicle forms a corupus luteum (cl), which secretes estrogen/progesterone.

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