Figure 8shows the result of clustering the 99 differentiated embryonic structures that expressed at least two of the 1,388 genes.

Placodes are embryonic structures that give rise to structures such as hair follicles, feathers and teeth.

Telencephalon refers to the embryonic structure from which the mature cerebrum develops.

The parts of the heart described above are formed from an embryonic structure called the endocardial cushions.

Scientists have known since the 19th century that in tetrapods, including humans, the middle ear develops from an embryonic structure called the first gill arch.

Polarity has a major influence on the mergence of the embryonic structures.

He also first described in 1839 the embryonic structure, now known as Rathke's pouch, from which the anterior lobe of the pituitary gland develops.

The conceptus includes all structures that develop from the zygote, both embryonic and extraembryonic.

There is a need to have a specific name not only for the final developed embryonic structures but also for all the developmental intermediates that precede them.