13:17 duration 13 minutes 17 seconds
Ch 24 XIV - Liver Metabolism
Ch 24 objectives 8-9.
15:17 duration 15 minutes 17 seconds
Ch 23 XIII - Chemical Digestion
Ch 23 objective 25.
16:14 duration 16 minutes 14 seconds
Ch 23 IX - Liver and Gallbladder
Ch 23 objectives 19-20.