PS102 Lecture Notes - Zygote, Birth Weight, Menopause
Document Summary
Germinal (1st 2 weeks) rapid cell division implants onto the uterus the outer part of the zygote becomes the placenta and the inner portion is the baby: bringing oxygen to and from the baby. Embryonic (2 weeks- 2 months) 2. 5 cm: shell of human form and the organs begin to develop. Fetal (2 months to birth: muscles and bones develop. Nutrition: malnutrition pyschatric disorders, low birth weight, heart disease, diabetes. Drugs born with addictions cocaine, pot physical difficulties alcohol fetal alcohol syndrome: smaller head, heart defects, delayed motor skills, retardation dads cocaine and alcohol attach to sperm. Illness: aids rubella, flu, std"s small head, blindness, deafness, brain damage. 1 reflexes: suckling, rooting leads to suckling, swallowing, grasping cephalocoudal movement: gain control over their upper body before their lower body proximodistal movement: gain control of the torso before extremities forcing the baby to use their extremities tummy time.
