PBA201H: The Biology of Prenatal Human Development
“Fewer women would have abortions if wombs had windows.”
– Former Abortionist Bernard Nathanson
When does human life begin?
“This brand new embryo contains the original copy of a new individual’s complete genetic code. Gender, eye color, and other traits are determined at conception, also known as fertilization.”
The genetic code of the zygote is unique–distinct from those of the mother and father. For instance, a pregnant woman could be pregnant with a male child.
Some may ask what makes a single-celled zygote different from a single cell of, say, human skin. Both are living, human, diploid cells. However, one is a human whole while the other is a human part. Give each cell time, nutrition, and safety, then wait 9 months or 15 years…which one continues developing into a toddler, or a teenager? A skin cell will always remain a skin cell, while a zygote will continue human development into an embryo, fetus, newborn, toddler, etc.
If something is growing, isn’t it alive?
We know from the law of biogenesis that living things come from other living things. After all, if the pre-born child isn’t biologically alive, why would a woman need an abortion?
If someone has human parents, aren’t they human offspring?
Cellular Biology: Composition and Behaviour
FIX ME have Oriyana or other staffer look over this for accuracy, or check against this / pull significant points from EHD Prenatal Summary http://www.ehd.org/prenatal-summary.php
“Most significant developmental milestones occur long before birth during the first eight weeks following conception when most body parts and all body systems appear and begin to function. The main divisions of the body, such as the head, chest, abdomen and pelvis, and arms and legs are established by about four weeks after conception. Eight weeks after conception, except for the small size, the developing human’s overall appearance and many internal structures closely resemble the newborn.”
FIX ME condense
Primitive Streak & Twinning
“By 21 to 22 weeks after fertilization, the lungs gain some ability to breathe air. This is considered the age of viability because survival outside the womb becomes possible for some fetuses.”
“A fetus is just a blob of tissue, just a clump of cells.”
“It doesn’t even look like a human being.”
“So many embryos miscarry anyway, so what’s the big deal about abortion?”
“A fetus isn’t human, it’s just a parasite feeding off of a woman’s body!”
“An embryo is basically a tumour feeding off the mother’s body.”
Biology textbooks, embryology studies, and medical advancements continue to confirm what we already know: pre-born children are living human beings from fertilization onward. By advocating for the legal protection of the pre-born, pro-lifers are simply advocating for science-based public policy.
Other Links FIX ME
Embryology presentation used by CCBR
From Oriyana Hrycyshyn (can sub in name of any child for her sister Inessa)
approx. 45 min, covers all the major milestones of prenatal development + leaves time for questions/practice
Link to Google Doc of notes: https://docs.google.com/document/d/16o1oh6ClzosIVa1SHByPgNXtNkTKHv1m8rrZteoxnno/edit?usp=sharing
https://prolifetraining.com/resources/five-minute-10/ | constructed vs developing