neural groove

There is a hint of a neural groove on its surface.

It begins growing in a concave area known as the neural groove.

Although its neural groove has deepened somewhat, it is still quite shallow.

This neural groove sets the boundary between the right and left sides of the embryo.

As development proceeds, a fold called the neural groove appears along the midline.

This line is called the neural groove.

Between these folds is a shallow median groove, the neural groove.

The neural plate folds outwards to form the neural groove.

A neural groove (future spinal cord) forms over the notochord with a brain bulge at one end.

Beneath the neural groove runs the notochord (Figure 1e) and on either side of it the paraxial mesoderm.

The center of the neural plate remains grounded, allowing a U-shaped neural groove to form.

This creates a central anchoring point for the process of folding to occur, and subsequently creates the neural groove.

This depression, known as the neural groove, becomes more accentuated as the neural folds form on the 9th day (Figure 1e).

On the ventral aspect of the neural groove an axial thickening of the endoderm takes place.

The expanding epidermis puts pressure on the MHP and causes the neural plate to fold resulting in neural folds and the creation of the neural groove.

After recruitment from the ectoderm, the neuroectoderm undergoes three stages of development: transformation into the neural plate, transformation into the neural groove (with associated neural folds), and transformation into the neural tube.

The neural plate folds inward to form the neural groove, and then the lips that line the groove merge to enclose the neural tube, a hollow cord of cells with a fluid-filled ventricle at the center.

In order to allow for the growth of precursor neural tissues, as opposed to precursor bone or cartilage tissues, BMP expression is decreased in the neural plate, specifically along the medial line, where the neural groove will soon form.

Before the neural groove is closed, a ridge of ectodermal cells appears along the prominent margin of each neural fold; this is termed the neural crest or ganglion ridge, and from it the spinal and cranial nerve ganglia and the ganglia of the sympathetic nervous system are developed.