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07:01 Ch 23 VIII - Small Intestine Ch 23 VIII - Small Intestine	Ch 23 VIII - Small Intestine Ch 23 objectives 17-18. intestine absorption surface duodenum brush things enzymes border food layers circulares plicae modifications portion digestion stomach blood ville villi wall From Ashlee Tietje 5 plays 0
14:37 Blood II - Erythrocytes Blood II - Erythrocytes	Blood II - Erythrocytes Chapter 17 objectives 4-7. hemoglobin oxygen blood cells carbon cell heme monoxide dioxide structure erythrocytes globin portion iron chains atp protein elements mitochondria platelets From Ashlee Tietje 30 plays 0