The tongue helps in digestion mainly by _________.
The tongue helps in digestion mainly by _________.
जीभ मुख्य रूप से _________ पाचन में सहायता करती है।
Detailed Solution & Logic
mixing food with saliva/ भोजन को लार के साथ मिलाकर
Explanation
The tongue plays an important role in the initial stage of digestion. Its main function is to mix food with saliva in the mouth.
Saliva contains digestive enzymes such as salivary amylase (ptyalin) that begin the digestion of starch (carbohydrates). The tongue moves food around the mouth so that it mixes properly with saliva and forms a soft mass called a bolus, which can be easily swallowed.
Extra Facts
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The tongue also helps in tasting, swallowing, and speaking.
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Digestion of carbohydrates begins in the mouth because of salivary amylase.
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Teeth mainly perform the function of crushing and grinding food, not the tongue.
व्याख्या
जीभ (Tongue) पाचन की प्रारंभिक अवस्था में महत्वपूर्ण भूमिका निभाती है। इसका मुख्य कार्य भोजन को लार (Saliva) के साथ मिलाना है।
लार में सैलिवरी एमाइलेज (Salivary amylase / प्टायलिन) नामक एंजाइम होता है, जो स्टार्च (कार्बोहाइड्रेट) के पाचन की शुरुआत करता है। जीभ भोजन को मुंह में इधर-उधर घुमाकर उसे लार के साथ अच्छी तरह मिलाती है और एक नरम गोला बनाती है जिसे बोलस (Bolus) कहते हैं, जिससे भोजन निगलना आसान हो जाता है।
अतिरिक्त तथ्य
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जीभ स्वाद लेने, बोलने और निगलने में भी सहायता करती है।
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कार्बोहाइड्रेट का पाचन मुख (mouth) में ही शुरू हो जाता है।
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दाँत (Teeth) का मुख्य कार्य भोजन को पीसना और चबाना होता है।
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