PSYC 100 Chapter Notes -Neuroplasticity, Menarche, Frontal Lobe

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PSYC 100 Full Course Notes
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PSYC 100 Full Course Notes
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Zygote (germinal period: single new cell formed at conception. Embryo (embryonic period: formed from the inner cell mass (cells inside the morula, developing embryo resides within the amniotic sac (maintains a constant environment, separates into three layers: Innermost layer of tissue; develops into digestive system, urinary tract, lungs. Mesoderm: middle layer; develops into muscle, bone, circulatory system. Ectoderm: outer layer; develops into skin, hair, teeth, central nervous system. Fetus (foetal period: majority of organ growth is complete, sleep and wake patterns emerge, movement, development of vestibular system, responsive to sound, taste. Three cell layers differentiate: small tube of ectoderm (neural tube) formed inside embryo. Neurulation: neural tube develops into brain and spinal cord. Neural migration: process by which neurons grow, move, and connect as the neural tube develops into a more mature brain. Teratogens: external compounds that can cause extreme deviations from typical development, early, lengthy exposure and greater amount = more drastic effects.

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