I break down information about the excretory system that will be useful for the MCAT. He first compares the functions of the excretory system versus the digestive and urinary systems. Then, he describes the anatomy of the excretory system. Finally, he details the physiology of the excretory system in terms of its various waste products.

• [01:14] The Role of the Excretory System
• [03:32] The Kidney
• [06:00] The Bladder
• [07:17] The Liver
• [10:54] The Skin
• [12:35] The Lungs
• [13:38] The Large Intestine
• [17:21] Excreting Byproducts of Protein & Lipid Breakdown
• [25:25] Excreting CO2
• [26:26] Excreting Electrolytes
• [29:31] Excreting Toxins in Drugs

Here are the episodes on renal physiology and the digestive system for those who want to dive deeper. 

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