Medical School MD + DO Mastery

A 4-year, board-aligned study system for medical school and licensing exams.

Walk the full Year 1–4 curriculum — foundational sciences, organ-system blocks, clinical clerkships and advanced practice — each with mastery checklists and linked learning resources, plus a dedicated review system for school exams, Shelf/COMAT, USMLE Step 1–3 and COMLEX-USA Levels 1–3.

RENAL / URINARY SYSTEM

YEAR 2 | PAGE 23A - GFR, NEPHRON TRANSPORT, OSMOLALITY + ACID-BASE

THINK LIKE A KIDNEY: FILTER -> REABSORB/SECRETE -> CONCENTRATE -> REGULATE Build one connected model: RENAL BLOOD FLOW/GFR -> NEPHRON SEGMENT TRANSPORT -> MEDULLARY GRADIENT/ADH -> VOLUME/ELECTROLYTES -> ACID-BASE. For each perturbation, predict urine and serum changes before naming the disease or drug.

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

#VideoTimeWhyLink
1.~43 min

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

1.~43 min
2.

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

Renal Autoregulation (Updated) - Ninja Nerd

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

2.~49 min
3.

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

Filtration, Reabsorption & Secretion: Overview - Ninja Nerd

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

3.~37 min
4.

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

Tubular Function & Reabsorption - Ninja Nerd 4-video sequence

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

4.4 videos
5.

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

Acid-Base Disorders - Ninja Nerd (2024)

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

  • 5.
  • ~92 min

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

RENAL PHYSIOLOGY CLOSED-BOOK CHECK

A. DEEP RENAL PHYSIOLOGY VIDEOS - DIRECT & PLAYABLE

  • Predict GFR, RBF and filtration fraction after afferent/efferent constriction or dilation, including NSAID/ACE-I/ARB effects.
  • Map major nephron transporters, water permeability and diuretic targets by segment; predict serum/urine electrolyte consequences.
  • Explain free-water handling, ADH/aldosterone/RAAS and the corticomedullary gradient without relying on memorized disease labels.
  • Solve primary acid-base disorder -> expected compensation -> mixed disorder -> renal response using mechanism, not pattern alone. VIDEO-FIRST | SCHOOL-EXAM + BOARD-EXAM MASTERY