18678 vibro 63

Chemical Proce*™* in Oigestion

These are the processes by which food-stuffs are actually broken down by Digt*tiv« Juices in prcparation for their absorption and use by the body.

Thua the MUSCULAR MECH ANI-CAL PROCESSES can be likcncd to a conveyor belt which carriea food* atufTs along into different compart-ments, to be broken up into aimnler subatnnees by the CHEMICAL PROCESSES.

Digcstćon thua takes place through breaking up complcx aolid food into timplcr materiał* which the body can ea*ily abaorb.

Thi# Chemical brcaking-up is brought about with subatancca cnllcd ENZYM ES. The ENZYM ES do not themaelvea tako part in the breaking up proces*, but their preaencc accma to make the action caaicr, a* if they aasorted the various food comnoncnts for the Dige*tive Juices to work upon. ENZYM ES are aa id to be apeciflc. cach ia working up only a certain ty po of food.

The DIGESTIYE ENZYMES which are abaolutely neceasary to digestion, are formed by the secreting cellg of the DIGESTIYE GLANDS, locatcd in difTeront portions of the DIGES-TIVE TRACT.

The DIGESTIVE ENZYMES, to chemically break up food are aupplied in the digC8tive tract aa foliowa: (t) SAL1VA containa one ENZYME and ia aupplied in the mouth while you chcw your food; (2) GASTRIC JUICE, containing tcveral EN

ZYMES ia aupplied by the glands in the STOMACH; (3) PANCREATIC JUICE, containa several different ENZYMES and ia aupplied from the PANCREAS; it ia acereted into the food u* it paases through the DUO-DENUM; (4) 1NTESTINAL JUICE contnins atill moro food-breaking ENZYMES and is aupplied from the glands in the INTESTINK; (5) BILE is sccrcted by the LIVER into the DUODENUM; it doea not con-tain any ENZYMES. bul faciliUtea digestion and absorption of fata.

Secretion of Digestive Juices

The 3ALIVA» GASTRIC JUICE and BILE are sccrcted in smali amount* all the timc, but their flow ia greatly spoeded-up when food i* nreacnt.

The PANCREATIC JUICE and IN-TESTINAL JUICE are formed only under the Rtimulua of food in the intestine.

When conditiona wlthin your body permit the DIGESTIVE PROCESS to get a good start, the later stagea function morę caaily. And when the DIGESTIYE PROCESS geta off to a bad start, the entire digcative system ia thrown out of balance.

Thua you can aco that thornugh chow-ing ia an a id to good digestion by causing a good flow of digeative fluidu, and in dividing the food into smali piece# and mixing it wcll with the saliva.

I wam you, under no circumatances ahould you awallow your food without ebewing it. You muat chew your food slowly, wcll masticated with SAL-