PSYC 100 Study Guide - Final Guide: Umbilical Cord, Neural Tube, Neuroplasticity

• School: Queen's University
• Department: Psychology
• Course: PSYC 100
• Professor: Jordan Poppenk

Document Summary

Epigenetic modification: some genes are turned on and off, genotypes end up not expressing themselves, ultimately end up with different cellular properties and functions. Stem cells: all cells in the morula are stem cells, they have the possibility of developing into all different kinds of cells found in the human body. After the embedment, the embryo consists of hundreds of cells: endoderm: innermost layer of tissue. Develops into the digestive system, urinary tract, and lungs: mesoderm: middle layer. Transforms into bone, circulatory system, and muscle tissue: ectoderm: the outer layer. Develops into skin, hair, teeth, and the central nervous system. Apoptosis: genetically programmed process of cell death alongside the normal development of cells and organs, used to tri(cid:373) off (cid:449)hat is (cid:374)eeded a(cid:374)d (cid:449)hat is(cid:374)"t, process is vital throughout development. If the(cid:455) feel like the(cid:455)"re droppi(cid:374)g, the(cid:455) rea(cid:272)h out a(cid:374)d gra(cid:271) (cid:449)hate(cid:448)er: tonic neck reflex.