Tag: digestive glands and their secretions

The stomach is divided into the cardia, fundus, body, and the distal pylorus, which connects to the duodenum.

Active absorption in the small intestine involves energy-dependent transport mechanisms for various nutrients, including glucose, amino acids, and sodium ions.

Secretin is produced by the S-cells in the mucosa of the small intestine, specifically the duodenum.

Both secretin and cholecystokinin are hormones secreted by the duodenal mucosa in response to chyme entering the small intestine.

The hepatopancreatic duct (formed by the common bile duct and pancreatic duct) opens into the duodenum at the major duodenal papilla.

Meckel's diverticulum is a common congenital anomaly resulting from the incomplete closure of the vitelline duct, occurring in the distal ileum.

The small intestine is the primary site for both the chemical digestion of food and the absorption of nutrients into the bloodstream. While the stomach begins protein digestion, the vast majority of nutrient uptake occurs in the small intestine.

Vomiting is a reflex action typically triggered by irritation or distension of the stomach or the upper small intestine (duodenum). It is controlled by the vomiting center in the medulla oblongata, not the hypothalamus.

Secretin is a hormone released by the S cells of the duodenum in response to low pH (acidic chyme) entering from the stomach. It stimulates the pancreas to release bicarbonate-rich fluid to neutralize the acid.