PSYCH 2AA3 Lecture Notes - Lecture 2: Morning Sickness, Fetus, Heart Rate
11 Mar 2014
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Document Summary
Sex of child- determined by father y(small chromosome) for male child. 3 trimester (1-3 months: trimester 1) all organs mapped out, blueprint made. Day 15- nerve cells begin to form. Can be uncomfortable for mother, surge in hormones (like progesterone) in mother, can cause morning sickness. Heart- forms after 22 days, size of poppy seed, begins to contract and heartbeat begins. Eyes- begin as black dots on the head, eventually become eyes without lids. Mother may have natural instincts or cravings to eat healthy foods and avoid possibly harmful food. 10-14 weeks- woman goes for first ultrasound scan. After 11 weeks- kicking and certain reflexes- first using legs: the more the fetus moves the stronger the reflex will be- good for development of walking. 12 weeks- 2nd trimester- male vs female genitals- only difference is the angle at which it sticks out.
