Development of the Gastrointestinal system

Question 1

How do teeth develop?

Answer 1

First development in the oral cavity, first indication of teeth thickening is with the epithelium downwards, surrounded by the mesenchyme
These swellings represent the enamel organ of the tooth

Question 2

What does the ectoderm form?

Answer 2

the epidermis of the skin, epithelium of the oral and nasal cavities, the nervous system and the sense organs

Question 3

What does the mesoderm form?

Answer 3

Muscle and connective tissue (including bone)

Question 4

What does the endoderm form?

Answer 4

the mucosal epithelium and glands of the respiratory and digestive systems

Question 5

What does the GIT start out as?

Answer 5

a singular tube of endoderm

Question 6

What does the foregut give rise to?

Answer 6

The pharynx, the lungs, the (cranial) duodenym, stomach, pancreas…