PSYC 251 Lecture Notes - Lecture 3: Umbilical Cord, New Born, Circadian Rhythm
Document Summary
They thought there was a mini man in a sperm that would grow = homunculus. No influence of the woman -> all a(cid:271)out (cid:373)e(cid:374)"s ge(cid:374)es. Aristotle rejected the idea preformationism and embraced epigenesis. Thought developing baby was different than the child it came to be esp. in early development. Even with early microscopes they thought they saw homunculus. You can see what you want to see in a scientific way. May things could get screwed over in meiosis: every time a division occurs, something moves around or gets mixed up. Second point: no effective age on male sperms, some do not, sperm affected by environment and health, if bad, hugher chance of mutations. Takes 6 hours to get close to egg. Tails get (cid:449)rapped arou(cid:374)d a(cid:374)d (cid:272)a(cid:374)"t (cid:373)o(cid:448)e a(cid:374)(cid:455)(cid:449)here. Not be appropriate for implantation into the egg. Ends when implantation has occurred fully in the uterus -> end of first week.
