Course Objectives

The objectives of the course are to:

  1. Explore the anatomical structure and function of the kidney.
  2. Describe the processes of glomerular filtration, renal blood flow, and clearance.
  3. Examine the mechanisms of tubular reabsorption and secretion.
  4. Understand the role of the kidneys in fluid and electrolyte balance, pH regulation, and homeostasis.
  5. Analyze the factors that influence body fluid compartments and their ionic composition.
  6. Investigate the disorders related to renal function and body fluid homeostasis.

Overall Learning Outcomes

At the end of this course, students should be able to:

  1. Sketch a cross-section of the kidney and identify its major structures, including the renal cortex, renal medulla, renal calyces, medullary pyramids, renal pelvic space, renal artery, renal vein, and ureter.
  2. Describe renal blood flow, renal plasma flow, glomerular filtration rate (GFR), and filtration fraction, and list typical values for each.
  3. Explain the concept of renal clearance and use the clearance equation to estimate GFR, renal plasma flow, and renal blood flow.
  4. Describe the effects of reductions in GFR on plasma creatinine concentrations and plot their relationship.
  5. Discuss the role of the ascending limb of the loop of Henle in generating high renal interstitial fluid osmolality and explain the processes involved in producing either dilute or concentrated urine.
  6. Identify the processes that lead to acid-base disturbances and list common causes of these disturbances.
  7. Identify major routes of water intake and loss and predict how changes in these routes affect the distribution of total body water.
  8. List the major body fluid compartments and their ionic compositions.
  9. Describe methods used to measure body fluid compartments.
  10. Discuss the role of the kidney in maintaining the homeostasis of body fluids.

Detailed Course Content

Module 1: Kidney Anatomy and Physiology

  • Macroscopic, microscopic, and ultrastructure of the kidney.
  • The renal cortex, medulla, calyces, and pelvic space.
  • The role of the renal artery, renal vein, and ureter.

Module 2: Renal Function and Glomerular Filtration

  • Elements of renal function and the process of glomerular filtration.
  • Renal blood flow, renal plasma flow, and glomerular filtration rate (GFR).
  • Filtration fraction and typical values.
  • The concept of renal clearance and methods to estimate renal function.

Module 3: Tubular Reabsorption and Secretion

  • Mechanisms of tubular reabsorption and secretion.
  • Processes in the proximal and distal convoluted tubules.
  • Role of the loop of Henle in urine concentration and dilution.

Module 4: Acid-Base Balance and pH Regulation

  • Buffer mechanisms and regulation of pH.
  • Causes of acid-base disturbances and their effects on body systems.

Module 5: Body Fluid and Electrolyte Balance

  • Major body fluid compartments and their ionic composition.
  • Methods of measuring body fluid compartments.
  • The regulation of water intake and loss.
  • The role of the kidneys in fluid and electrolyte balance.

Module 6: Micturition and Urine Excretion

  • Physiology of micturition: bladder filling and voiding.
  • Neural control of micturition: role of the pontine micturition center, sacral spinal cord, and higher brain centers.
  • Disorders of micturition, including urinary retention and incontinence.
  • The relationship between micturition and kidney function.

Module 7: Renal Abnormalities and Homeostasis

  • Abnormalities of renal functions and their effects on body fluids.
  • Disorders related to renal function, including kidney failure, electrolyte imbalances, and water balance.

Teaching/Learning Methods

The course will be delivered through a combination of:

  • Lectures (30 hours)
  • Group discussions
  • Case studies and clinical applications
  • Visual aids (diagrams, videos, etc.) to illustrate kidney structure and function

Modes of Assessment

Assessment will be based on the following:

  • Continuous assessment: 30% (e.g., quizzes, assignments, class participation)
  • Mid-semester exam: 20%
  • Final written exam: 40%
  • Practical demonstrations (if applicable): 10%

Reading List/References

  • Guyton, A. C., & Hall, J. E. (2016). Textbook of Medical Physiology (13th ed.). Elsevier.
  • Boron, W. F., & Boulpaep, E. L. (2016). Medical Physiology (3rd ed.). Elsevier.
  • Koeppen, B. M., & Stanton, B. A. (2017). Renal Physiology (5th ed.). Elsevier.
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