1. Follow the flow of water as it is filtered into Bowman's capsule all the way till it is excreted as urine. Indicate locations through which water is moving. Also, if any water is reabsorbed or secreted as it travels through these paths, indicate so.
2. What are the blood vessels that receive the substances that are reabsorbed out of the renal tubules?
3. What is sensed by the Macula Densa cells? Describe the negative control loop and response they initiate.