5 Questions
What is the function of the tunica intima in the alimentary canal?
Protecting the gut from the adversive action of food
Which layer in the wall of the alimentary canal has gland cells interspersed in between columnar cells?
Epithelial layer
What is the function of the foregut in the alimentary canal?
Receives and stores the food
Which region of the alimentary canal is ectodermal in origin?
Foregut
What is the composition of the muscle layer in the alimentary canal?
Longitudinal and circular muscle layer
Study Notes
Layers of the Alimentary Canal
- The tunica intima is the innermost layer of the alimentary canal, responsible for absorption and secretion.
- The layer containing gland cells interspersed between columnar cells is the tunica mucosa.
Regions of the Alimentary Canal
- The foregut is the anterior region of the alimentary canal, responsible for ingestion and initial digestion.
- The region of ectodermal origin in the alimentary canal is the mouth and anterior part of the esophagus.
Muscle Layer Composition
- The muscle layer in the alimentary canal is composed of two sublayers: an inner circular layer and an outer longitudinal layer.
Learn about the structure and anatomy of the digestive system of silkworms, including the composition of the alimentary canal and its protective layers. Explore the unique characteristics of the silkworm's digestive system.
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