Chpt 4 Objective 7

Know the embryonic germ layers & what tissues arise from each

What are the three primary germ layers formed after the zygote divides?

Ectoderm, Endoderm, Mesoderm

Which tissue type is primarily formed from the ectoderm?

Nervous tissue

The mesoderm is responsible for forming which of the following?

Muscle and connective tissues

The endoderm primarily contributes to the formation of which structures?

Epithelial tissue of internal organs

Which layer is referred to as the 'inner layer' in germ layers?

Endoderm

What type of tissue is formed from the cells of the mesoderm?

Muscle and connective tissue

How long does it take for the zygote to differentiate into the three germ layers?

16 days