PIO 214University of IbadanOct 26, 2026
Cardiovascular & Renal Physiology Cheatsheet
Structure
8 Concept Stages
Practice Exam
38+ Questions
Active Recall
Exam-Matched
Executive Topic Summary
Interactive mental model study tree.
High-Yield Exam Takeaways
- Body Fluid Compartments: Where Your 42 Litres of Water Live
- Fluid Composition & Movement Forces: What Separates These Compartments
- Kidney Architecture: The Bean-Shaped Filtration Factory
- Glomerular Filtration: The First Step in Urine Making
- Tubular Processing: From Filtrate to Final Urine
- The Countercurrent System: Engineering Concentrated Urine
- Micturition and Diuresis: The Control of Voiding
- Kidney Functions: Beyond Just Making Urine
Study Tree Preview (Bite-Sized Concepts)
1Body Fluid Compartments: Where Your 42 Litres of Water Live
8 Micro-BitesThe Big Picture: Your Body Is Mostly Water:Picture this: about 60% of your total body weight is water. In a typical adult man, that works out to roughly 42 litres of water sloshing around inside you. But here's the catch — ...
The Two Main Compartments: ICF and ECF:Your body water splits into two major neighborhoods. The <term def="fluid inside your body cells, about 28 litres in adults">intracellular fluid (ICF)</term> fills the interior of ...
2Fluid Composition & Movement Forces: What Separates These Compartments
4 Micro-BitesThe Electrolyte Landscape: Sodium Outside, Potassium Inside:Take a look at the electrolyte map across compartments. The ECF — both plasma and interstitial fluid — is loaded with <term def="positive ion, main extracellular cation at 142 mEq/...
Proteins and the Osmotic Balance Act:Here's something crucial: most proteins sit inside cells, but plasma carries substantial protein too — about 7% of plasma weight. These <term def="plasma proteins that create osmot...
3Kidney Architecture: The Bean-Shaped Filtration Factory
7 Micro-BitesThe Kidney's Prime Real Estate and Massive Blood Flow:Your kidneys are bean-shaped organs tucked behind the peritoneal lining in your lower back — each weighs about 150 grams in a healthy adult, so together they're just 0.4% of body w...
Gross Structure: From Capsule to Calyx:Each kidney wears a <term def="fibrous outer coat that strips easily in healthy kidneys">capsule</term> — a fibrous coat that peels off readily. Inside, the <term def="dark brown g...
Sample Practice Questions (Active Recall)
Q1.Which of the following best explains why a person with higher body fat percentage has a lower total body water percentage?
AHigher fat content stimulates antidiuretic hormone, reducing water retention
BFat cells displace water and occupy space that would otherwise contain fluid
CAdipose tissue contains more intracellular fluid than muscle tissue does
DBody fat increases plasma protein concentration, drawing water into vessels
Q2.In a typical adult man, total body water constitutes approximately ______ percent of body weight.
Q3.How does the volume of intracellular fluid (ICF) compare to extracellular fluid (ECF) in a typical adult?
AICF and ECF are approximately equal at 21 litres each
BECF is twice the volume of ICF
CICF is four times the volume of ECF
DICF is approximately twice the volume of ECF
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