The dermatomal mesenchyme or cutis plate is the dorsal portion of the paraxial mesoderm

Paraxial mesoderm

Paraxial mesoderm is the area of mesoderm that forms just lateral to the neural tube on both sides.It differentiates rostrally into somatomeres and caudally into somites.It gives rise to the somitomeres/somites and mesoderm of the branchial arches....

 somite

Somite

A somite is a division of the body of an animal. In vertebrates this is mainly discernible in the embryo stage; in arthropods it is a characteristic of a hypothetical ancestor.- In vertebrates :...

 which gives rise to dermis

Dermis

The dermis is a layer of skin between the epidermis and subcutaneous tissues, and is composed of two layers, the papillary and reticular dermis...

.

It is also known as the "dermatome", but it should not be confused with the dermatomic area

Dermatomic area

A dermatome is an area of skin that is mainly supplied by a single spinal nerve.There are eight cervical nerves ,twelve thoracic nerves,five lumbar nerves and five sacral nerves....

, which is also sometimes called a "dermotome". (The two concepts are related, but the cutis plate is an embryological structure, while the dermatomic area is present in the adult.)

External links

• http://sprojects.mmi.mcgill.ca/embryology/earlydev/week4/somites.html