[KINESIOL 3U03] - Final Exam Guide - Comprehensive Notes for the exam (54 pages long!)
1 Dec 2016
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Complex, precise (defined) sequence of events (40 weeks) Zygote (1-2 wks total 2 weeks), embryonic (3-8 wks total 6 wks), fetal (9-40 wks-total 32 weeks) Structure, function and biophysical end product of pregnancy. If environment of fetus changes slightly, outcome at birth can be changed drastically. Embryonic rapid cell growth (#)/differentiation: stem cells are pluripotent (totipotent = zygote single cell dividing) Potential to give rise to any cell type. Committed to a specific cell type/tissue: gene expression/repression, transcription, protein synthesis. Generate differentiation: see diagram slide 5, unipotent once cells are differentiated, after pluripotent cells. Each egg has a single x chromosome. Xx = genetic female/ xy = genetic male: 6 week gestation. Primitive gonad can develop into female or male: 7 weeks gestation. Active differentiation of male = testes. Absence primitive gonad differentiates into ovaries. Fetal: weeks 9 through 40, rapid growth size and mass, proportion change (head size vs. body) (2 mo 50% of length, tissue development.
