PSYCH 230 Lecture Notes - Lecture 1: Prenatal Development, Blastocyst, Placenta

• School: Iowa State University
• Department: Psychology
• Course: PSYCH 230
• Professor: Warren Phillips

Document Summary

Prenatal de(cid:290)elopment: period of time in (cid:291)hich de(cid:290)elopment occurs in the uterus before birth. In humans it is (cid:555)(cid:560) +/- (cid:554) (cid:291)eeks. Single cell (cid:291)ith (cid:556)(cid:558) chromosomes (cid:606)half mom. It splits into more cells still (cid:291)ith (cid:556)(cid:558) chromosomes and half dad(cid:607) in each - the(cid:297) then split into (cid:554), the(cid:297) split again, etc. Rapidl(cid:297) di(cid:290)ide into a mass of cells called a. Allo(cid:291)s (cid:291)aste to pass into mom to be disposes. The blastoc(cid:297)te differentiates into (cid:555) la(cid:297)ers of cells. Vctoderm: outer cells form skin and ner(cid:290)ous. Mesoderm: mittle cells form muscles and s(cid:297)stem (cid:606)brain and spinal cord(cid:607) bones. An(cid:297)thing that interferes (cid:291)ith de(cid:290)elopment and interferes (cid:291)ith de(cid:290)elopment are called teratogens. Associated (cid:291)ith lo(cid:291) birth (cid:291)eight and potentiall(cid:297) lung problems/asthma. Prescription medications - most mental health medications, most pain medications, a skin medication. Prenatal de(cid:290)elopment is also split into (cid:555) trimesters. 4etus can kick, bend arms, open mouth, suck thumb. 4etus (cid:291)ill hide e(cid:297)es a(cid:291)a(cid:297) from a light (cid:606)light.