The mouth and pharynx are derived by a secondary infolding of superficial ectoderm called the stomodeum.
For example, most metazoans go through a developmental stage called a gastrula - a ball of cells with an infolding that later forms the gut.
The head region of the embryo is demarcated anterior to the node by the head fold, an infolding of the blastoderm composed of both ectoderm and endoderm.
The ductal structures showed an irregular outline with infoldings of the glands.
In the octopus eye it is formed by an infolding of the surface cells on the head, which become thickened to form eye components.
Definition of infolding in US English:
infolding
nounˈinˌfōldiNGˈɪnˌfoʊldɪŋ
technical
A turning or folding inwards; an inward fold.
〈技〉内翻；内折
Example sentencesExamples
The head region of the embryo is demarcated anterior to the node by the head fold, an infolding of the blastoderm composed of both ectoderm and endoderm.
The mouth and pharynx are derived by a secondary infolding of superficial ectoderm called the stomodeum.
For example, most metazoans go through a developmental stage called a gastrula - a ball of cells with an infolding that later forms the gut.
The ductal structures showed an irregular outline with infoldings of the glands.
In the octopus eye it is formed by an infolding of the surface cells on the head, which become thickened to form eye components.