08 Osmotic Regulation

Osmotic Regulation (Ch 50)

Objectives

    • Understand why homeostasis is a vital function of the human body.

    • Differentiate between positive and negative feedback loops. Give examples of each.

    • Pick one example of a negative homeostatic regulating process and explain how this system maintains physiological normalcy.

    • Compare osmoconformer and osmoregulator water balance.

    • Compare the excretory systems of flatworms, earthworms, and insects.

    • Describe the structure of a typical vertebrate nephron, the process of filtration and indicate which regions are associated with reabsorption or secretion.

    • Compare the efficiency of water reabsorption in freshwater, bony marine, and cartilaginous fishes; amphibians, reptiles, birds, and mammals.

    • Describe the internal structure of a typical mammalian kidney.

    • Understand the process of filtration in the human kidney especially as it relates to the materials that enter and leave proximal tubule and the loop of Henle.

    • Compare the osmotic condition of the renal cortex to the renal medulla and understand how it affects reabsorption of water.

    • Discuss hypothalamic and adrenal regulation of kidney function

Spiritual Concept

Jesus replied, “If you only knew the gift God has for you and who you are speaking to, you would ask me, and I would give you living water.” “But sir, you don’t have a rope or a bucket,” she said, “and this well is very deep. Where would you get this living water? And besides, do you think you’re greater than our ancestor Jacob, who gave us this well? How can you offer better water than he and his sons and his animals enjoyed?” Jesus replied, “Anyone who drinks this water will soon become thirsty again. But those who drink the water I give will never be thirsty again. It becomes a fresh, bubbling spring within them, giving them eternal life.” (John 4:10-14)

  1. Relate the passage to kidney function

  2. What is this passage saying about God's Spiritual Kingdom?