Womens Health M to M Flashcards
define Adenarchey
Is an early sexual matruirty stage in females
When does andenarchy occur?
6-8 years old
what changes are seen during adenarchey:
the adrenal gland secretes increased levels of androgens such as DHEA., which can be converted into more potent androgens, which prepares the body for the secondary sexual maturation.
When do DHEA levels peak and when do they decline?
They peak at about 25 years old and decline slowly to low level after age 60.
Explain the HPO axis from birth to puberty?
The HPO axis is active during fetal life for a few weeks after birth and then is is suppressed in childhood due to an enhanced negative feedback of estrogen. During Puberty the HPO axis resumes its activity triggering the release of GnRH which will stimulate LH and FSH (sex steroids) produced in the ovaries which ill trigger the secondary sexual characteristics.
Define Pubety:
Endocrine process that involves the physical, emotional and sexual transformation from childhood to adulthood.
What will affect the development of secondary sexual characteristics?
Ethinicty ( blacks and Mexicans earlier), body fat (decreased amount of leptin released from the adipose cytes)
How long does it take for secondary sexual maturation to occur?
It takes approximately 4 years.
Secondary sexual maturation is a predictable and orderly process what is the process?
Growth acceleration Thelarche (breast development) Pubarche (Pubic hair development) Menarche ( onset of menstaration) Ovulation
What scale is used to grade the secondary sexual characteristics?
The tanner scale
a. Stage I – Pre-puberty, no breast tissue or pubic hair
b. Stage II – Breast bud, enlarged areolar diameter, straight hair along lateral vulva
c. Stage III – Enlargement of breast without separation of areolar contour from breast, hair darker and coarser
d. Stage IV – areola and papilla project above breast, pubic hair similar to adult
e. Stage V – Recession of areola to match contour of breast, adult pubic hair
How long is the average menstrual cycle?
28-35 days
there is cyclical variability that is common during the teen years, when should you have a relatively stable cycle?
From age 20-40 years.
What is the average age of Menarche?
12 years old and is getting younger in each generation
what is the range of menarche:
8-16 years old
when must you start a work up of no period?
Must work up after the age of 16 to find cause if menarche has not occurred.
When is the follicular phase?
1st day of your periods until the LH surge
What is the Luteal phase?
LH surge until the 1st day of your periods
What is the roles of the hypothalamus?
To release GnRH in a pulsatile fashion to stimulate the pituitary release of FSH and LH
What is the function of FSH?
Stilumate the ovarian follicular growth- as the follicle grows it releases Estrogen which thickens the endometrium
What is the function of LH?
Surge of LH stimulates follicle to break open and discharge ovum and follliclar fluid containing estrogen.
The follicular phase is _____ predominant?
Estrogen
The Luteal phase is ______ predominant?
Progesterone
Luteal phase begins once
The oocyte is release
The follicle is then changes into the what?
The corpus leteum
What does the copus letuem produce?
Progesterone- the LH and FSH cause the Granulosa cells of the corpus letem to produce a lot of progesterone, since there is not enough aromatase around it does not convert all the way to estrogen- hence the high increase
What is Mittelschmerz?
Pain with ovulation
What effect does Follicular and Luteal phase on the endometrium?
Durring the Follicular phase: estrogen stimulated the endometrial growth
In the Luteal phase: progesterone cuases changes in the endometrial cells (secretory endometrium)
What is Anovulation?
No oocyte is release
What is a cause of anovulation in adolescence?
Cycle no fully funcyioning in a coordinated fasion ( hormones)
What is a cause of Anovulation perimenopause?
No more eggs
What is the cause of Anovulationin extremely obese individuals?
Increased levels of estrogen
What is the most common cause of amenorrhea?
Pregnancy
What is the difference in primary and secondary amenorrhea?
Primary: Lack of menstruation by age 16 in the presence of normal gowth and secondary sexual characteristics. Or no evidence of pubertal onset by the age of 13 (ie breast buds) or lack of menstruation within 2 years of the onset of breast development
Secondary Amenorrhea: Lack of mestration for greater than 6 mo in a qomen with a previously normal menstration. OR absence of menstruation for 12 mo in a women with a pervious history of Oligomenorrhea