Genital ridge containing cells to develop gonads. Germ stem cells (primordium germ cells) come into the yolk sac of to become gametes. Nephrotome grow into kidney dam-line channel.
Hypomere
Somati mesoderm and splanchnic mesoderm will develop:
Pouch gill (branchial pouches) in the foregut pharynx. Gill sacs were paired, trained by endoderm inner, outer ectoderm and mesoderm in the middle.
Selaptu body cavity and binding equipment in: pericardium.pleura, peritoneum, mesentery. All membranes composed of flattened epithelial cells called mesothelium and connective tissue.
Differentiation
Mekanism differentiation-derivatives of all three germ layers influenced factors:
1. Core2. Cytoplasm3. Microenvironment4. physical5. Hormone
Organizer
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