One of the pouches on each side of the throat of an embryo.
Any of the paired segmented pouches in the side of the throat of the early embryo. They give rise to the tympanic cavity, the parathyroid glands, the thymus, and probably the thyroid gland.
One of a series of five pairs of entodermal outpocketings that develop in lateral walls of the pharynx of the embryo.