A muscular sac {stomach}| on trunk left side receives food from esophagus. Stomachs have region {cardiac region} near heart, large sac {fundus, stomach}, and pylorus. Stomachs have a smooth-muscle-ring sphincter at top opening, which closes after bolus enters. Stomach and digestive tract have inner mucosa, middle circular and longitudinal muscle layers, and outer connective-tissue layer. Stomachs hold 2.5 liters. Stomachs can absorb alcohol, aspirin, and poisons. Helicobacter pylori bacteria cause stomach ulcers.
Biological Sciences>Zoology>Organ>Digestion>Parts>Stomach
4-Zoology-Organ-Digestion-Parts-Stomach
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Date Modified: 2022.0224