In most euopisthobranchs, the buccal cavity contains the radula. A pair of salivary glands releases into the buccal cavity a fluid for agglutination and lubrication of the food during feeding and ingestion. The esophagus can include a crop to accommodate ingested food, and many euopisthobranchs possess a gizzard with hard plates for food grinding. The stomach is embedded in the digestive gland and linked to it by a system of ducts. The digestive tract lumen is lined by an epithelium formed by ciliated and nonciliated absorptive cells, intermingled with different kinds of secretory cells. The absorptive epithelial cells are covered by microvilli and contain several lysosomes for intracellular digestion of particles captured by endocytosis. The digestive gland comprises multiple digestive diverticula formed by digestive cells engaged in intracellular digestion, and basophilic cells that secrete enzymes for extracellular digestion. The intestine is usually long ending in the anus.