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07:54 Ch 23 VII - Gastric Contractions Ch 23 VII - Gastric Contractions	Ch 23 VII - Gastric Contractions Ch 23 objectives 15-16. stomach cells food waves reflex contraction intestine activity receptors cajal duodenum process sphincter digestion pepsin strength rhythm intestines pylorus wave From Ashlee Tietje 57 plays 0
10:56 Ch 18 IV - ECG Ch 18 IV - ECG	Ch 18 IV - ECG Ch 18 objective 12. depolarization heart wave node repolarization qrs activity waves ecg tracing channels ventricles av calcium things interval atrium alright slide words From Ashlee Tietje 5 plays 0

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