PA Online uses an organ system approach, which means that each medical concept is explored through the study of one biological system at a time. The curriculum is taught in both a horizontal and vertical fashion, so the study of each system is integrated throughout coursework. For example, students explore cardiology across all of their courses: In Pharmacology they learn which medications are used in the treatment of cardiology disorders; in Diagnostic Studies they learn how to interpret EKGs; in Clinical Medicine they learn about various cardiac disorders; and in Patient Assessment they learn how to perform a cardiac examination.

Organ System Sequence

  • Dermatology
  • Hematology
  • Gastroenterology
  • Renal/Genitourinary System
  • Reproductive
  • Pulmonary
  • Cardiology
  • Musculoskeletal
  • Psychiatry
  • Eye, Ears, Nose, and Throat
  • Neurology
  • Endocrine
  • Emergency Medicine/Peds/Preclinical

This list is subject to change.


  • Human Anatomy I, II, III
  • Basic Science I, II, III
  • Patient Assessment I, II, III
  • Diagnostic Studies I, II, III
  • Clinical Medicine I, II, III
  • Pharmacology I, II, III
  • Behavioral and Preventive Medicine I, II, III
  • Preparing Future PAs I, II, III

See course descriptions here.

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