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Multiple Choice

Which enzyme is secreted from glands present at the posterior part of the tongue which starts digestion of lipids in the mouth?

Lipid digestion in the mouth starts with lingual lipase, which is secreted by the glands located at the posterior part of the tongue (the von Ebner’s glands). This enzyme begins breaking down triglycerides in the oral cavity, producing diglycerides and free fatty acids. While gastric lipase and pancreatic lipase continue fat digestion later in the GI tract, lingual lipase is the one produced by the posterior tongue glands. The other options don’t fit because salivary amylase targets carbohydrates, pancreatic lipase is secreted by the pancreas into the small intestine, and gastric lipase comes from the stomach, not the tongue glands.

Lipid digestion in the mouth starts with lingual lipase, which is secreted by the glands located at the posterior part of the tongue (the von Ebner’s glands). This enzyme begins breaking down triglycerides in the oral cavity, producing diglycerides and free fatty acids. While gastric lipase and pancreatic lipase continue fat digestion later in the GI tract, lingual lipase is the one produced by the posterior tongue glands. The other options don’t fit because salivary amylase targets carbohydrates, pancreatic lipase is secreted by the pancreas into the small intestine, and gastric lipase comes from the stomach, not the tongue glands.