Is physics necessary to become a medical doctor?
2 min readJul 1, 2020
I was under this misapprehension too.
The reality being physics is everywhere!
Although pure physics in its actual form taught in +2 / Intermediate is not directly applicable to studying human biology, there is good deal of physics in understanding human physiology.
- Fluid dynamics in cardiovascular system,
- electrical conduction in ECG, electrophysiology labs,
- optics in visual system and further in ophthalmology,
- sound wave related issues in audiology / audiometry,
- muscle contraction and neurophysiology deal good amount with potential differences / electricity issues.
- Parallel and series circuits in pulmonary / systemic circulation
- Similar application in long / short distance association fibres in brain.
- Metabolism, heat sink, engine efficiency with ATP generation and distribution.
- Feedback and feedforward loops for homeostasis / endocrine systems and neuron circuits.
- Issues on resistance, conductance for study of airflow in respiratory system.
- Clinical application in CT scan for checking hounsfield units based on stopping power of each tissue medium for X rays.
- Electromagnetic principles as applied to MRI as spin of atoms is realigned by magnetic fields, relaxation being registered as images for each pixel.
- Lasers of different fancy types for Urology, Ophthalmology, General Surgery with safety precautions at each level.
- Ergonomics of laparoscopic surgery in terms of fulcrum point for each port to obtain best effort with minimal energy. (Depth of port placement and instrument use)
- Area of cooling based on body surface area with its role in cardiac index, burns treatment, hyperthermia etc. (Heat loss or gain correlates to surface area roughly)
- Radioisotope compounds for use in bone scans based on technetium that we use in oncology and neurosurgery on a routine basis.
I really can’t imagine medicine and surgery without physics and its language of study, mathematics.