BIOC19H3 Lecture Notes - Lecture 6: Mesenchymal Stem Cell, Petri Dish, Gastrointestinal Tract
18 Nov 2016
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Document Summary
Morphogenesis (slide 2: differentiation and growth of tissues and organs during development, after gastrulation (and formation of the three germ layers, ecto-, meso- and endoderm), internal organs begin to be formed. In this lecture we will see how tissue interactions are crucial for the formation of internal organs such as the digestive tract, the pancreas and the lungs. In the embryo, internal organs are forming such as the liver, pancreas, and the gastrointestinal (gi) tract, (esophagus, stomach, intestine) *the two tissue layers are epithelium and mesenchyme. *the epithelium (ice internal epithelium cells) forms the internal organs and are cuboidal in shape. *the apical end can change in shape some form cilia or villi. *the top of the epithelial cell is known as the apical end while the end closest to the. *basement membrane is known as the basal end. *the black line represents the basement membrane, which contains laminin (proteins)
