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BODY FACTS

HEALTH LECT1RE NO. 3

if JOE IOIOMO

Presenting Basic Health Facts and Ana-tomical Knowlodge for the lmproved Dovolopmont of Physique, Vital-ity and Personal Power

DIGESTION

DIGESTION . . . the assimilation of foods so that thcy may bc utilized by the body.

The Object of Digostion

Most food atulTa aro of mich a naturę that they cannot directly lx* used by the body . . . eithcr as a fucl to aup-ply energy, or ps building materials to bc u»cd for building strong bonę and muscle tissue.

It is the function of DIGESTION to convert the food you cat into sub-stance* which the body can caaily usc. DIGESTION tukes place in a serie* of organa knowń colicctkciy na the AUMENTARY TRACT The ar-rangement of the varioua organa of the AUMENTARY TRACT. in their order, is aa foliowi; . UOUTH, ESOPHAGUS. STOMACH. Smali INTESTINE, LARGE INTESTINE. DIGESTION is attaincd by two mcana:

1.    By a MUSCULAR MECH ANI* CAI. proce**, in which the MUS-CU LAR anparatua of the di gest i vc tract breaka up solid foods into a fairly dividcd soft mass, and also move* the food along the ALI-MENTARY TRACT.

2.    By a CHEMICAL ACTION of Digestive Juiccs seereted by glanda located cithcr in the lining of the AUMENTARY TRACT itsclf, or ncar by to it-

Mechanical Processes of Digestion

The MUSCULAR MECHANICAL uppuratus concerned in digestion may be briefly deacribed aa foliowa: Firat the food is ground down by chcwing, and ia awallnwed; (2) it ia then car-ried down the ESOPHAGUS by a muacular movement; (3) from therc it paasea into the STOMACH, where it ia tcmporarily atored; (4) muacu-lar action within the STOMACH gradually movea the food onwarda; (5) the partially digested food puaaea on from the STOMACH into the DUODENUM; (6) it rcmains therc for a while, and ia again pushed along by interna) muacular action into the lowcr portiona of the SMALL INTESTINE; (7) the larg-eat part of the proceaaea of the proc-essea of digestion and absorption tukes place in the SMALL INTESTINE; (8) from the SMALL INTESTINE, the food materia! is paaacd on by mcans of long, wave-like "periataltic" movcmenta into the LARGE INTESTINE; and (9) from there, what ia left of the original food-atuffs, and not absorbed by the body, ia paaacd out aa waate.

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