Pop. Dynamics Flashcards
Define menarche
A women’s first menstrual cycle
Define fertility
Refers to actual reproduction. A women is fertile if she has born or is bearing off spring
Define fecundity
Denotes the ability to reproduce. Once a girl reaches a menarche, she is fecund
Define weaning
The removal of Breast milk from an infant or young child’s diet
Define prolactin
Pituitary hormone that regulates the production of progesterone levels
Define replacement level
A population term referring to the number of births required to maintain a stable population
Surrogate mothers
Substitute or replacement
Lends her uterus to another couple
Two types of surrogacy:
Surrogate provides egg that is insemenated artificially or the infertile women provides egg that is transferred to surrogates uterus
The term separation individuation process
By peter blos in 1967
Explains the gradual pulling away of teens from their parents and teens develop a network of significant other
Fran Baum’s voluntary childlessness in 1994
Hedonists- want to maintain a certain standard of living (money wise)
Idealistic- don’t want to bring a child into a world they feel is unsuitable
Practical- practical reasons like not wanting to pass on genetic defect
Emotional- women who do not have an emotion draw to babies or kids
DMT phases:
Phase 1- birth rate is high and stable, death rate fluctuates (rural populations)
Phase 2- birth rate remains high, death rate declines rapidly (Nigeria)
Phase 3: birth rate is declining rapidly and death rate remains low (China)
Phase 4: birth and death rates are low and stable birth rate slightly ahead (Canada)
Phase 5: a slowly rising death rate and stable or slightly declining birth rate (European countries)
Two alternative reproduction technologies and methods
I️VI-intrauterine insemination where women are given drugs to cause her to produce more than one egg per cycle, when she ovulates she is inseminated in uterus through catheter with a selection of mans best sperm
AID-artificial insemination by donor where sperm is provided by donor to test and accepted if it has a high sperm count and good motility then is frozen and loaded into plastic straws
Factors that affect infertility
Rapid spread of STD ex clamydia blocks Fallopian tubes
Estrogen in water supplies declines sperm counts in developed countries
And women not giving birth till thirties, women’s fertility decreases as she ages and fewer reproductive years
What is CPP
Canadian pension plan
In vitro definition
performed or taking place in a test tube, culture dish, or elsewhere outside a living organism.