Question

During which trimester does organogenesis, the formation of all major organs, primarily occur?

Options

• First Trimester

• Second Trimester

• All three trimesters equally

• Third Trimester

Answer 1

Organogenesis, the formation of all major organs, primarily occurs during the first trimester (months 1-3 or weeks 1-12). This is the most critical period of development when most major organ systems are established.