[CAS PS 544] - Midterm Exam Guide - Everything you need to know! (58 pages long)

• School: Boston University
• Department: Psychological & Brain Sciences
• Course: CAS PS 544
• Professor: Amanda Tarullo

Document Summary

Ps544: lecture 1: brain development (part 1: prenatal development, prenatal stages: a. i. No specialization, exact copies of itself, equipotential to differentiate, stem cells a. i. 1. b. Migrates from ovary to uterus through fallopian tubes http://www. 78stepshealth. us/plasma-membrane/female-sex-organs-produce-eggs-receive-sperm-and- nurture-the-embryo. html a. i. 2. <50% of zygotes make it this far a. i. 2. a. i. Most common time for things to go wrong a. i. 2. b. Now physical connection to mom through implantation a. i. 2. d. Binging on alcohol more dangerous at 10 wks than 5 a. i. 3. Gastrulation: cells differentiate into outer cell mass (support system) and inner cell mass http://www. daviddarling. info/encyclopedia/b/blastocyst. html a. i. 3. b. The inner cell mass has 3 layers: a. i. 3. b. i. Top layer (ectoderm) becomes nervous system and face a. i. 3. b. ii. Middle layer (mesoderm) becomes bones, muscles, organs a. i. 3. b. iii. Bottom layer (endoderm) becomes other organs a. i. 3. c. Neural tube eventually develops into nervous system a. i. 3. c. ii. Spina bifida: back end of tube fails to close, baby"s skin won"t close over spinal cord a. i. 3. c. ii. 2. a. how spina bifida decreased a. i. 3. c. ii. 2. b. 1990s discovered link between folic acid and defect a. i. 3. c. ii. 2. c.