Human physiology . -,p Ilpnni m to KrailSC, each Square„ . millimetre OI the jejunum Contains -i A 1 O -P^V 1 Oil /» fl ^ lU-lo, OI tile 11611111 O-14. Ull 1116 Kr,aic nf flTie pilpnlTHnn rhp tnralDaS1 number of villi in the whole of the small intestine may be taken as fourto five millions, and each square centimetre of the apparent surfaceof the intestine gains about twenty-three times in area from the. FIG. 88.— Injected lacteal vessels in twovilli of human intestine. (Teichmann.)100 diameters. The lacteals are filled Accordingwith white substance; the blood-vessels with dark, a, b, lacteals
Human physiology . -,p Ilpnni m to KrailSC, each Square„ . millimetre OI the jejunum Contains -i A 1 O -P^V 1 Oil /» fl ^ lU-lo, OI tile 11611111 O-14. Ull 1116 Kr,aic nf flTie pilpnlTHnn rhp tnralDaS1 number of villi in the whole of the small intestine may be taken as fourto five millions, and each square centimetre of the apparent surfaceof the intestine gains about twenty-three times in area from the. FIG. 88.— Injected lacteal vessels in twovilli of human intestine. (Teichmann.)100 diameters. The lacteals are filled Accordingwith white substance; the blood-vessels with dark, a, b, lacteals, singlein one villus, double in the other;r, horizontal lacteals, communicatingwith those of the villi; d, blood-vessels which consist of small arteriesand veins with capillary network IN TEENAL EESTITUT1VE SECEETIONS 267 protrusion of the villi. As shown in Fig. 87, they consist of aspecial epithelium which encloses a lymphoid tissue: in the centreof this is a lacteal, the wall of which consists of simple epithelioidcells with wavy outlines, which in all probability have little stomata Tad
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectphysiology, bookyear1
