Human Pathophysiology Course

Lesson 1 • Tissue Types and Organization

Examines epithelial, connective, muscle, and nervous tissues. Links tissue architecture to functional capacity and vulnerability to injury.

Lesson 2 • Fluid and Electrolyte Balance

Describes body fluid compartments and electrolyte distribution. Imbalances introduced here recur throughout later disease-specific chapters.

Lesson 3 • Acid-Base Physiology

Explains pH regulation via buffers, lungs, and kidneys. Mastery here is prerequisite for interpreting respiratory and metabolic disorders later.

Lesson 4 • Cell Structure and Function

Covers organelle roles, membrane transport, and cell signaling. Provides the cellular framework needed to understand how dysfunction originates at the microscopic level.

Lesson 1 • Cell Death Pathways

Contrasts necrosis and apoptosis at molecular and morphological levels. Understanding these pathways explains tissue loss patterns seen in clinical disease.

Lesson 2 • Genetic and Epigenetic Contributions

Covers mutations, chromosomal abnormalities, and epigenetic modifications as disease drivers. Provides genetic literacy needed for oncology and inherited disorder chapters.

Lesson 3 • Cellular Injury and Adaptation

Analyzes causes of cell injury and adaptive responses such as hypertrophy and atrophy. Distinguishes reversible from irreversible injury to predict disease progression.

Lesson 4 • Inflammation: Acute and Chronic

Details vascular and cellular events of acute inflammation and the transition to chronic states. Inflammation underlies nearly every pathological process covered in this course.

Lesson 1 • Transplant Rejection Pathophysiology

Describes hyperacute, acute, and chronic rejection mechanisms at the cellular level. Illustrates applied immunopathology in a clinically significant context.

Lesson 2 • Innate and Adaptive Immunity Review

Summarizes normal immune components as a foundation for understanding dysregulation. Emphasizes pattern recognition and lymphocyte activation relevant to pathological states.

Lesson 3 • Immunodeficiency States

Distinguishes primary from secondary immunodeficiencies and their infectious consequences. Prepares students to recognize opportunistic infection patterns in immunocompromised patients.

Lesson 4 • Autoimmune Disease Mechanisms

Explains loss of self-tolerance and molecular mimicry as triggers of autoimmunity. Connects mechanisms to systemic and organ-specific autoimmune conditions.

Lesson 1 • Ischemic Heart Disease

Explains myocardial oxygen supply-demand mismatch and infarction progression. Connects ischemia duration to reversible versus irreversible myocardial injury.

Lesson 2 • Atherosclerosis and Arterial Disease

Details lipid accumulation, endothelial dysfunction, and plaque progression. Establishes atherosclerosis as the mechanistic root of coronary and peripheral vascular disease.

Lesson 3 • Arrhythmias and Conduction Disorders

Explains altered automaticity, reentry, and triggered activity as arrhythmia mechanisms. Provides mechanistic basis for understanding hemodynamic consequences of rhythm disturbances.

Lesson 4 • Hypertension Mechanisms

Covers primary and secondary hypertension pathways including RAAS and sympathetic activation. Links sustained pressure elevation to end-organ damage in heart, kidney, and brain.

Lesson 1 • Respiratory Failure and ARDS

Defines type I and type II respiratory failure and the pathophysiology of ARDS. Integrates gas exchange, inflammation, and mechanical ventilation concepts.

Lesson 2 • Obstructive Lung Diseases

Contrasts asthma, COPD, and bronchiectasis by mechanism and airflow pattern. Builds on inflammation concepts to explain airway remodeling and hyperresponsiveness.

Lesson 3 • Pulmonary Vascular Disease

Explains pulmonary hypertension and embolism pathogenesis and their hemodynamic consequences. Connects right heart strain to left-sided cardiac effects introduced in the prior chapter.

Lesson 4 • Restrictive Lung Diseases

Covers interstitial fibrosis, pleural disease, and neuromuscular causes of restriction. Explains reduced lung compliance and its effect on work of breathing.

Lesson 1 • Thyroid and Adrenal Disorders

Covers hypo- and hyperthyroidism and adrenal insufficiency versus excess. Links hormonal imbalance to cardiovascular, metabolic, and neurological manifestations.

Lesson 2 • Glomerular and Tubular Disorders

Explains nephritic and nephrotic syndromes and tubular dysfunction mechanisms. Connects glomerular injury patterns to proteinuria, hematuria, and edema formation.

Lesson 3 • Calcium and Bone Metabolism Disorders

Explains PTH, vitamin D, and calcitonin interactions and their disruption in disease. Connects hypercalcemia and hypocalcemia to neuromuscular and cardiac manifestations.

Lesson 4 • Acute and Chronic Kidney Disease

Distinguishes prerenal, intrinsic, and postrenal acute kidney injury and CKD progression. Explains uremia and its multisystem effects as a consequence of nephron loss.

Lesson 1 • Coagulation and Thrombotic Disorders

Explains the coagulation cascade, fibrinolysis, and their dysregulation in thrombosis and bleeding. Connects DIC pathophysiology to simultaneous clotting and hemorrhage.

Lesson 2 • Anemia Pathophysiology

Classifies anemias by mechanism: decreased production, increased destruction, and blood loss. Explains compensatory responses and oxygen delivery impairment.

Lesson 3 • Cerebrovascular Disease

Analyzes ischemic and hemorrhagic stroke mechanisms and penumbra physiology. Builds on vascular pathology from the cardiovascular chapter to explain brain-specific consequences.

Lesson 4 • Seizure Disorders and Neuropathic Pain

Explains excitatory-inhibitory imbalance in epilepsy and peripheral sensitization in neuropathic pain. Connects ion channel dysfunction to abnormal neuronal firing patterns.

Lesson 1 • Hallmarks of Cancer

Applies the hallmarks framework to explain sustained proliferation, apoptosis evasion, and angiogenesis. Provides a unifying model for understanding diverse tumor behaviors.

Lesson 2 • Tumor Microenvironment

Describes stromal cells, immune infiltrates, and hypoxia as tumor-promoting factors. Explains how the microenvironment enables immune evasion and therapy resistance.

Lesson 3 • Tumor Invasion and Metastasis

Explains epithelial-mesenchymal transition, basement membrane degradation, and metastatic colonization. Connects local invasion to distant organ tropism patterns.

Lesson 4 • Paraneoplastic Syndromes

Explains remote tumor effects mediated by hormones, antibodies, and cytokines. Illustrates how cancer disrupts physiology beyond the primary tumor site.