Gut Tube and Body Cavities Overview

The process of the neural plate rolling up to form the brain and spinal cord.

The formation of the gut tube, occurring simultaneously with neurulation.

The middle layer of the trilaminar embryonic disc, responsible for forming key structures like the body cavity.

The part of the mesoderm that splits into visceral and parietal layers, forming the body cavity.

The layer of the lateral plate mesoderm that forms the body wall.

The layer of the lateral plate mesoderm that forms the internal linings of the organs.

The space between the parietal and visceral layers of the lateral plate mesoderm, forming the initial body cavity.

The process of the primitive body cavity being divided into the pericardial, pleural, and abdomino-pelvic cavities.

A thin membrane that forms during development and contributes to the formation of the diaphragm, separating the chest and abdominal cavities.

The central tendon of the diaphragm is developed from the fusion of the two pleuroperitoneal membranes.

The crura of the diaphragm, which are muscle attachments, are formed from the mesentery of the esophagus.

Muscle fibers that make up the diaphragm originate from cervical spinal segments C3-C5. These segments were responsible for diaphragm development in the fourth week.

The phrenic nerve, which controls the diaphragm, originates from the ventral rami of spinal nerves C3-C5.

A thick mesodermal tissue dividing the thoracic cavity from the yolk sac.

Openings on either side of the foregut, connecting the thoracic and abdominal cavities.

Outgrowths of the respiratory system that expand into the pericardioperitoneal canals.

Folds of mesoderm that form the definitive thoracic wall and the pleuropericardial membranes.

Membranes extending from the pleuropericardial folds, containing the common cardinal veins and phrenic nerves.

Crescent-shaped folds that partially close the opening between the pleural and peritoneal cavities.

The muscle that separates the chest and abdominal cavities, formed from multiple structures during development.

The process of separating the thoracic and abdominal cavities by forming the diaphragm and pleural membranes.

The development of the body cavity in the early embryo, involving the infolding of the lateral body wall folds to create the peritoneal, pleural, and pericardial cavities.

The two layers of mesoderm: the parietal layer lining the body wall and the visceral layer covering organs.

Thin sheets of mesoderm that line body cavities and cover organs.

The structure that suspends the gut tube from the posterior body wall into the peritoneal cavity, formed from the fusion of the parietal and visceral layers of mesoderm.

The structure that exists only in the caudal foregut and upper duodenum, resulting from the thinning of mesoderm in the septum transversum.

The connection between the midgut region and the yolk sac, incorporated into the umbilical cord and eventually degenerating.

The connection between the gut and the posterior body wall, formed by the fusion of the parietal and visceral layers of the lateral plate mesoderm.