UNIT 3- REPRODUCTION CONTRACEPTION & INFERTILITY Flashcards
In pubery the hypothalamus secretes what hormones?
- Gonadotropin-releasing hormone (GnRH)
In puberty the anterior pituitary secretes what hormones?
- Follicle-stimulating hormone (FSH)
- Leteinizing hormone (LH)
During puberty what is happening with the ovaries and testes doing?
Increasing production of sex hormones (gametes)
Male and female reporductive systems are similar in utero for how long?
until the 1st 6 weeks
What secretes the primary sex hormones?
Ovaries and testes
During childhood the sex glands are…. active or inactive
inactive
When do reporductive organs become functional?
Puberty
What should we know about puberty changes in males?
(when does it happen, what triggers it, and what secondary sex characteristics will we see?)
- Puberty- capable of reproduction- 13.5 y/o age
- Triggered by the production of testosterone
- secondary sex characteristics
- Skeletal growth
- increases in body composition
- devleop body hair- facial, axillary and pubic
- Voice changes
- Enlargment of testes and penis
- noctural emissions (wet dreams) not usually mature sperm tho
What should we know about female puberty changes?
(when does it happen, what triggers it, and what secondary sex characteristics will we see?)
- Puberty- capable of reproduction- 8-13 y/o age
- Triggered by the production of estrogen
- Secondary sex characteristics
- Develope body hair-axillary, legs & pubic area
- Body contours-widening of hips
- Skeletal growth
- Reproductive organs
- Breast changes- mamary ducts & nipples erect
- 1st menstrual period-2-2.5 years after puberty
What are the structures of a female reproductive system?
- Ovaries
- Fallopian tubes
- Uterus
- Cervix-internal and external os
- Vagina
The anterior pituitary hormone FSH’s function is?
Helps control menstrual cycle & production of eggs by ovaries
The anterior pituitarys hormone LH’s function is
A surge causes ovulation and results in formation of corpus luteum
The ovaries release estrogen and its funciton is?
- THickens uterine lining and regulates growth, development & physiology of reproductive system
The ovaries release progesterone and its function is?
- Prepares the lining of the uterus to impant and grow a fertilized egg; inhibits FSH & LH
What are the 4 phases of the menstrual cycle?
- Menstrual phase
- Proliferative phase
- Ovulatory phase
- Luteal phase
In the menstrual cycle what is the menstrual phase?
- Day 1 to Day 5
- changes we might see- mood swings, tender breast, cravings, irritable
In the menstrual cycle what is the proliferative phase?
- Day 5-14 end of menstral- pituitary secretes FSH which makes the egg, LH which houses the egg and starts produceing progesterone
In the menstrual cycle what is the ovulatory phase?
- This is where your best shot of pregnancy occurs- marked increase in the LH and FSH hormone, getting ready for egg.
- Only 1 egg per month
Think 0 for egg
In the menstrual cycle what is the luteal phase?
- During this phase, levels of FSH and LH decrease in response to higher levels of estrogen and progesterone. If the ovum is fertilized it secreats a hormone that causes persistence of corpus luteum to maintain an early pregnancy
- If the ovum is not fertilized, FSH and LH fall to low levels and the corpus luteum regress.
- Decline of estrogen and progesterone along with corpus lutum regression results in menstrauation as the uterine lining breaks down.
The menstrual cycle is caused by
hormone changes
What are the 4 phases in the endometrial cycle?
- menstrual phase
- Proliferative phase
- Secretory phase
- Ischemic phase
The endometrial cycle is driven by…
What is happening to the lining physcially
In the endometerial cycle what is the menstrual phase?
Vasocontriction and shedding of the lining which sloths off
In the endometrial cycle what is the proliferative phase?
- Occurs as the ovum matures and is released during the first half of the ovarian cycle. After completion of a menstrual period, the endometrium is very thin. The basal layer of the endometrial cells remain after menstration. These cells multply to form new endometrial epithelium and endometral glands under the stimulation of estrogen secreated by the maturing ovarian follicles. Endometrial sprial arteries and endometerial veins elongate to accompany thickening of the functional endometrial layer and nourish proliferating cells. As oculation approches, the** endometrial glands secrete thin, stringy mucus that aids entry of sperm into the uterus.**