PSYCH 111 Chapter Notes - Chapter 11: Lanugo, Birth Weight, Microcephaly

• School: U of M
• Department: Psychology
• Course: PSYCH 111
• Professor: Elizabeth Buvinger

Document Summary

Developmental psychology - explores physical, cognitive, social and emotional lifespan development. Prenatal development: germinal (first 2 weeks, embryonic (2 weeks to 2 months) Head, face, and neck developbuds for limbs form/growmajor organs/digestive system differentiatingheartbeat begins: fetal (2 months to birth) 3rd month - digestive organs begin to functionbuds for teeth formsex organs develop rapidlyarms/fingers move. 4th month - face looks humanlower body outgrows headbones are defined. 5th month - fingernails and toenails appearlanugo - fine/wooly hair over bodyvernix - waxy coating collects. 6th month - eyebrows/lashes well definedeyes completely formed. 7th month - fetus capable of life outside uterus. 8th/9th month - fat is deposited for later usefingernails beyond fingertipslanugo is shedmyelination of brain takes placechief organs increase functioningvernix covers body. Teratogens - harmful toxins that affect development resulting in defect/damage/anomaly. Depends on dose, basic heredity (vulnerable vs sturdy), multiple determination (stress, nutrition), age of organism at exposure. Thalidomide 1950s-caused babies to be born without fully formed limbs.