PSY210H5 Lecture Notes - Lecture 2: Spina Bifida, Neural Tube, Amniotic Sac
Document Summary
Chapter 3: prenatal development, birth and the newborn. Development starts at conception until the fertilized egg attaches to the wall of the uterus marks period of zygote. Conception takes place in fallopian tube after egg is released. During progression of fertilized egg there"s a coming together of genetic compliments from sperm and egg and chromosomes pair off, and process of cell division takes place. They form a structure called blastocyst : characeristized by a ring of cells towards the outside and more of a clump of cells towards the part of the inside, the part around the outside is called the. Trophoblast which is what turns into the placenta, and acts as the interface with the mothers system and protects the collection of cells inside which becomes the baby, from outside influence that may cause harm. The period of the zygote ends when the blastocyst attaches to mothers uterus.
