PSYC20008 Study Guide - Final Guide: Prenatal Development, Zygote, Blastocyst

• School: University of Melbourne
• Department: Psychology
• Course: PSYC20008
• Professor: Katheirne Johnson

Document Summary

Phylogenetic continuity: due to our shared evolutionary history, we share many characteristics and developmental processes with other living things. Brain structure and function: size of human brain is remarkably larger and more complex than other mammals, principles of cortical development and physiology (how the brain and body develops) are shared. Gametes and conception: ovum: largest sized cell in the human body, sperm: ejaculation 500 million sperms. Sperms travel approximately 6 hours (6 7 inches) through the vagina, uterus, into the fallopian tube. Only about 200 ever get close to the ovum (tangles, wrong fallopian tube, abnormal shapes: period of the zygote: 0 to 14 days, from conception to implantation into the wall of the. Penetration, sealing of the membrane, tail of sperm falls off and contents of head gush into the ovum. Within hours the nuclei of the two gametes merge, producing the zygote.