Enteric nervous system development in cavitary viscera allocated to the celiac plexus

Area of Science:

• Neuroscience
• Gastroenterology
• Human Embryology

Background:

• The enteric nervous system (ENS) is a complex neural network within the gastrointestinal tract.
• It comprises the myenteric (Auerbach) and submucous (Meissner and Henle) plexuses.
• The ENS regulates vital digestive and absorptive functions.

Purpose of the Study:

• To investigate the microscopic morphology of the human enteric nervous system.
• To examine the development and structure of ENS plexuses in fetal and neonatal specimens.

Main Methods:

• Microscopic examination of 23 human fetal specimens (crown-rump length 9-28 cm) and 3 newborn specimens.
• Utilized Trichrome Masson staining for general tissue visualization.
• Employed Bielschowsky silver impregnation on block technique for detailed neural structure analysis.
• Focused on cavitary viscera associated with the celiac plexus, analyzing all tissue layers.

Main Results:

• Detailed visualization of neuronal cells and nerve fibers within the ENS plexuses.
• Demonstration of the intricate network of the myenteric and submucous plexuses.
• Evidence of ENS structural development across different fetal ages.

Conclusions:

• The study provides detailed microscopic evidence of the human enteric nervous system's structure.
• Highlights the importance of specific staining techniques for ENS research.
• Contributes to understanding the anatomical basis of gastrointestinal function from early development.