13:27duration 13 minutes 27 seconds
Ch 25 VII - Medullary Osmotic Gradient
Ch 25 objective 15.
06:14duration 6 minutes 14 seconds
Ch 25 VI - Tubular Secretion
Ch 25 objective 14.
10:53duration 10 minutes 53 seconds
Ch 25 II - Nephrons
Ch 25 objectives 5-6.