Day 4 12 weeks pregnant

Cell differentiation is a process in which a generic cell develops into a specific type of cell in response to specific triggers from the body or the cell itself. This is the process which allows zygote to develop into a multicellularorganism which can contain hundreds of different types of cells. Cell differentiation is critical to embryonic development. Cell differentiation can also be called cell specialization.  

Steps of Cell Differentiation

1. Fertilization

2. Cleavage

3.Morula

4. Blastocyst

5. Gastrula

Ectoderm

• Brain
• Spinal Chord
• Nerves
• Skin
• Pigment Cells

Endoderm

• Respiratory System
• Digestive System
• Liver
• Pancreas
• Thyroid Cells
• Lung cell

Mesoderm

• Heart
• Kidneys
• REd Blood cells
• Bones
• Cardiac Muscle
• SKeletal Muscle
• Tubule Cells of Kidney
• Smooth Muscle