KINESIOL 1Y03- Midterm Exam Guide - Comprehensive Notes for the exam ( 19 pages long!)

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Meiosis is not complete until the sperm comes in contact with the oocyte. Only 1% of sperm actually make it to the oocyte. Embryonic period: fertilization to end of 8th week, organ systems develop (first 2 weeks of development during formation of primitive germ layers is sometimes called the germinal period ) (but are fully developed) and mature. Fetal period: 9th week until birth, organ systems grow. Terminology: clinical/medical events: date since last menstrual period (clinical age of unborn child). Clinical event is how old the fetus supposedly is: embryologists: post-ovulatory age (approximately 14 days less than clinical age). Embryologists know that sperm and egg do(cid:374)"t atta(cid:272)h a(cid:374)d (cid:271)e(cid:272)o(cid:373)e e(cid:373)(cid:271)ryo u(cid:374)til 14 days later: sperm are self-propelled by flagella (their tials), women only release one oocyte per menstrual cycle. Oocyte will only stay viable for 24 hours, whereas, sperm can live from 48 hours to up to 6 days.

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