PHYSIOLOGY
YEAR 1 | PAGE 11A - ELECTRICAL, CARDIOVASCULAR, RESPIRATORY & RENAL FOUNDATIONS
Master physiology as VARIABLE -> NORMAL RELATIONSHIP -> PERTURBATION -> COMPENSATION -> GRAPH/LAB CHANGE. The objective is prediction: if one variable changes, you should be able to predict the direction and mechanism of the others.
A. DEEP PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE
| # | Video | Time | Why | Link |
|---|---|---|---|---|
| 1. | Resting Membrane, Graded & Action Potentials - Ninja Nerd | core electrophys | Ionic gradients, membrane permeability, Na+/K+ ATPase, graded potentials, threshold, refractory periods and saltatory conduction. | Open → |
| 2. | Cardiac Cycle - Ninja Nerd | ~24 min | Pressure, volume, valves, ECG and heart sounds across one beat; essential for murmurs, PV loops and hemodynamic reasoning. | Open → |
| 3. | Cardiac Output - Ninja Nerd | ~45 min | CO = HR x SV with preload, afterload, contractility, Frank-Starling and autonomic regulation. | Open → |
| 4. | Ventilation-Perfusion Coupling - Ninja Nerd | ~29 min | V/Q ratio, apex-to-base differences, shunt vs dead space and clinical causes of mismatch. | Open → |
| 5. | Glomerular Filtration - Ninja Nerd | ~43 min | GFR, filtration forces and the renal determinants of what crosses the glomerular barrier. | Open → |
| 6. | Renal Autoregulation - Ninja Nerd | renal control | Myogenic response, tubuloglomerular feedback and afferent/efferent physiology maintaining RBF and GFR. | Open → |
A. DEEP PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE — CORE PHYSIOLOGY CLOSED-BOOK CHECK
- Draw an action potential and explain the ionic current responsible for each phase and refractory period.
- Recreate Wiggers/PV-loop logic; predict effects of preload, afterload, contractility and heart-rate changes.
- Explain V/Q mismatch, shunt and dead space using oxygenation consequences rather than memorized labels.
- Predict GFR/RBF changes after afferent/efferent constriction, sympathetic tone, RAAS and autoregulatory signals. VIDEO-FIRST | SCHOOL-EXAM + BOARD-EXAM MASTERY