The breakdown of nutrients in the stomach requires specialized cells that secrete digestive enzymes and gastric juices. ∙ 2010-11-08 18:01:22. Gastrin stimulates the secretion of parietal and chief cells. B). The wall of digestive tract is made up of smooth muscle tissues, connective tissue and … What is the function of the gastrointestinal tract? Digestive System Digestive System Structure and Function of Digestive Cells | Actforlibraries.org Definition: A gastric chief cell (or peptic cell, or gastric zymogenic cell) is a cell in the stomach that releases pepsinogen, gastric lipase and Chymosin. duodenum - brunner's glands; jejunum - villi more fingerlike; ileum - contains peyer's patches; Colon. The digestive system is composed of two separate parts: (1) a long muscular tube, stretching from the lips to the anus and (2) a number of glands located outside of the tube proper. – Storage of ingested food. Other organs assist with digestion by mechanically breaking down food or secreting … Accordingly, what is the function of the chief cell? Cells - The Digestive System They have basally located nuclei and a basophilic cytoplasm with abundant rough endoplasmic reticulum and many secretory granules that contain pepsinogen. C : Intrinsic factor facilitates the absorption of vitamin C across the intestinal lining. serosa . Study now. The continual churning movements of the muscular walls of the stomach mix food with a digestive fluid, known as gastric juice. Digestive process ¾Primary function: breakdown & transport nutrients, H2O, & electrolytes 1. (a) The human digestive system is an enormously complicated series of organs and tissues. – Disruption of chemical bonds in food material by acid. In the main body of the stomach, chief cells produce digestive enzymes; however, upon injury, they undergo rapid proliferation for prompt tissue regeneration. goblet cells: their purpose is to secrete mucusthis mucus serves to protect the digestive tube from digestive enzymes and to allow the smooth passage of material along the tube. All mammals … Digestive System Histology | PDF | Stomach | Small Intestine Each layer plays a vital role in the digestive system ranging in their capacity to form a protective barrier from the highly acidic contents of the stomach to supplying hormones, producing muscle contractions and draining lymph. Digestive Systems GAST is secreted by G-cells in the gastric epithelium. utah education budget 2021. iloilo supermart tagbak. • Major Functions of the Stomach.
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