Physiology major

Physiology: courses, careers, and where to study

Physiology examines how living systems function, from cells to whole organisms, and suits students drawn to homeostasis, organ systems, and a science foundation for health or research paths.

A Physiology major focuses on the functional dynamics of living systems: how cells, tissues, organs, and whole organisms work, communicate, and maintain balance. Coursework follows the official definition of the field, covering reproduction, growth, hormonal action, vascular and neurophysiology, and systems-level physiology, alongside the biochemical and biophysical signaling that links these processes. Students study morphology and function together, asking not just what a structure is but how it operates and how it stays regulated. This is what sets physiology apart from its neighbors. General biology surveys life broadly, kinesiology centers on human movement and exercise, and neuroscience concentrates on the nervous system, while physiology asks how integrated systems sustain homeostasis across levels of complexity. Expect a foundation in biology, chemistry, and quantitative methods, paired with laboratory work where students measure responses in living systems and connect cellular mechanisms to whole-body function.

The degree is usually a bachelor's of science, often built on introductory biology and chemistry before students move into cellular, systems, and comparative physiology, with labs that train measurement, experimental design, and data interpretation. Be aware of the honest path ahead. Many research and health-professional careers in this area require graduate or professional study rather than a bachelor's alone, since independent scientific roles such as medical scientist typically call for a doctoral or professional degree. Bachelor's graduates frequently begin in laboratory and health-support positions, or use the major as a pre-health foundation for medicine, dentistry, physical therapy, or graduate programs. Common settings include university and hospital research labs, clinical and diagnostic facilities, biotechnology and pharmaceutical employers, and public health and education roles. If a specific credential or license matters to your goals, confirm the requirements for that profession before committing to a single track.

In federal data for the closely related occupation of medical scientists, the U.S. Bureau of Labor Statistics reports a 2024 median wage of $100,590 and projects employment to grow about 8.7% from 2024 to 2034; a doctoral or professional degree is the typical entry-level education for that occupation. National figures are occupation-wide medians across all experience levels, not starting wages or graduate outcomes.