Significats de ventral wall en anglès

The ventral wall advances into the amnion, which encloses the embryo.

The origin of the navel coincides with the complete closing of the external ventral wall.

Our lungs, trachea, and larynx are formed from the ventral wall of the branchial gut.

Not less interesting and important is an organ that develops from the ventral wall in all vertebrates-thegill-grooveor hypobranchial groove.

Immunoreactive processes of tanycytes were found extending from the ventral wall of the third ventricle to the brain parenchyma and surface.

A thin membrane, standing vertically in the middle plane, the mesocardium, connects the ventral wall of the head-gut with the lower head-wall.

As a result of this change the yelk-sac becomes henceforth only a pouch-like outer appendage at the middle of the ventral wall.

In the mammals, in which the remainder of the yelk-sac remains without and atrophies, the yelk-duct at length penetrates the outer ventral wall.

In all air-breathing vertebrates the lungs are developed from the ventral wall of the esophagus as a pouch which divides into two sacs.

Hence the ventral wall, which encloses the whole ventral cavity below, consists of two parts, two lateral plates that bend towards each other.

We saw that the palingenetic form of the heart is a spindle-shaped thickening of the gut-fibre layer in the ventral wall of the head-gut.

By dorsal growth (w) it also reaches the external wall of the coelom-pouches, and proceeds from the dorsal to the ventral wall.

This causes the ventral wall of the amniote embryo, between the head and the navel, to be pushed outwards as in rupture (cf.

In these cases the whole yelk undergoes cleavage at first, and forms a yelk-gland, composed of yelk-cells, in the ventral wall of the primitive gut.

We will consider the formation of the dorsal wall first, and that of the ventral wall afterwards (Figures 1.143 to 1.147).