Embryo Folding and Endoderm Differentiation

Overview of Events 4th week

Folding

Endodermal Derivatives ~ 30 days

Forgut derivatives

Midgut derivatives

Hindgut derivatives

Mesoderm derivatives

Mouth

Small intestine

Parts of large intestine

* Spleen

Pharyngeal Þ glands (T glands)

Large intestine

Rectum (cloaca separates rectum from bladder)

 

Esophogus

 

Urinary bladder

 

Stomach surrounded by muscle (splanchnopleure)

 

 

 

Liver

 

 

 

Artery

 

 

 

Gall bladder

 

 

 

Pancreas