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1. fertilazation: Referred as conception and impregnation
2. Fertilization: The Beginning of Pregnancy
3. Fertilization: Union of a sperm nucleus, of paternal origin, with an egg nucleus,
of maternal origin, to form the primary nucleus of an embryo.
4. third: Fertilization occurs in the outer _________of fallopian tube or ampullar
portion.
5. zygote: After penetration of the ovum, the chromosomal material of the ovum and
the spermatozoon fuse to form a ____________.
6. ovum, zygote, embryo, fetus: stages of a baby's development?
7. Implantation: Contact between the growing structure and the uterine endometri-
um, occurs approximately 8-10 days after fertilization.
8. *8-10 days
*fertilization: Implantation is contact between the growing structure and the uterine
endometrium, occurring approximately ___________ days after _____________.
9. Implantation: Usually occurs high in the uterus on the posterior surface.
10. embryo: Implantation is once implanted the zygote is called an ___________.
11. The Decidua or Uterine Lining: Human chorionic gonadotropin (hCG) secreted
by the trophoblast cells causes the uterine endometrium to continue to grow in
thickness and vascularity sloughing off as in a usual menstrual cycle. This is termed
as decidua (falling off) because it will be discarded after birth of the child.
12. human chorionic gonadotropin (hCG)
*grow
*Thickness
*decidua: In The Decidua or Uterine Lining
_____________________________________ (HCG) secreted by the trophoblast
cells causes the uterine endometrium to continue to ______ in ____________
and vascularity sloughing off as in a usual menstrual cycle. This is termed
_____________ (falling off) because it will be discarded after the birth of the child
13. Chronic Villi: As early as the 11 th or 12th day after fertilization, miniature villi,
resembling probing fingers, reach out from the trophoblast cells into the uterine
endometrium, to begin formation of the placenta
14. *11th
*12th
*fingers
*placenta: In Chronic Villi as early as the _____ or_________ day after fertilization,
miniature villi, resembling probing ___________, reach out from the trophoblast
cells into the uterine endometrium, to begin formation of the ___________
15. Chronic Villi: It has a central core which produces placental hormones ( hCG,
somatomammotropin, estrogen and progesterone); it protects the growing embryo
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and fetus from certain infectious organisms such as the sprichette of syphilis early
in pregnancy.
16. Placenta: grows from a few identifiable trophoblastic class at the beginning of
pregnancy to an organ 15 - 20 cm in diameter and 2 to 3 cm in depth, covering about
half the surface area of the internal uterus as term
17. 15-20cm
2 to 3cm: The placenta grows from a few identifiable trophoblastic classes at the
beginning of pregnancy to an organ ___- ____ cm in diameter and ___ to ____ cm
in depth, covering about half the surface area of the internal uterus as the term
18. REPRODUCTIVE DEVELOPMENT: Begins at the moment of conception and
continues through life.
19. Reproductive System: collection of internal and external sex organ which
works together for the purpose of sexual reproduction.
20. Gonad: begin as genital regress; pair of longitudinal regist derive from interme-
diate mesoderm and overlying the epithelium
21. Gonads: Body organ that produces the cells necessary for reproduction
22. 1st Stage: What gonadal development stage where it's impossible to distinguish
between male and female and do not contain any germ cell
23. 4th Week: What gonadal development stage where germ cell begin to migrate
from the endoderm lining of yolk sacs to genital regests
24. 5th Week: What gonadal development stage where combination of germ cell
and primitive sex chords forms the indifferent gonad from which development in to
the testes/ ovary can occur.
25. 5th Week: What gonadal development stage where Mesophrenic (wolffian) and
paramesonephric (mullerian duct) form.
26. 5th week of development: What gonadal development stage where the tissue
that will become ovaries and testes, have already formed
27. 6th week of development: What gonadal development stage where reach the
genital regress?
28. 7th week of development: What gonadal development stage is where in the
chromosomal male, early gonadal tissue begins the formation of testosterone. Under
the influence of testosterone, the mesonephric duct develops into male reproductive
organs and the paramesonephric regresses.
29. 10th Week: In what gonadal development stage where if testosterone is not
present, the paramesonephric duct becomes dominant and develops into female
reproductive organs.
30. 10th Week: In what gonadal development stage where when ovaries form, all of
the oocytes are already present
31. oocytes: cells that will develops into eggs throughout the woman's mature years