THE CELLS THAT SECRETE PEPSINOGEN IN STOMACH ARE CALLED PEPTIC CELLS ( PEPTIC INTENDS 'DIGESTING' HERE ). BUT WHY WAS SUCH A 'GENERAL' NAME GIVEN TO A PROTEIN DIGESTING TISSUE ? MAYBE BECAUSE PROTEIN CONSTITUTES FOR MORE OF OUR BODY THAN CARBOHYDRATES , IS MORE IMPORTANT FOR US TO INTAKE AND DIGEST. Edit : they are also called 'chief' cells ; there are other protein digesting glands in following parts of our track but peptic is the first one making its function significant and irreplaceable
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