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What is Physiology?

Physiology is the study of how the human body works. It describes the chemistry and physics behind basic body functions, from how molecules behave in cells to how systems of organs work together.

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It helps us understand what happens in a healthy body every day and what goes wrong when someone gets sick. Human physiology is the study of how the human body works. It helps us understand basic body functions, from cells to organs. It ties chemistry and physics with those body functions, helping us understand what happens in a healthy person’s body daily. Most of the physiology depends on basic research studies in a laboratory. Some physiologists study single proteins or cells, while others might research how cells interact to form tissues, organs, and systems within the body. Most physiologists work in laboratories, researching how the body functions at a molecular level and studying the togetherness of cells to form tissues, organs, and systems.
Physiology vs Anatomy

Medical examiners use different techniques to learn than X-rays or ultrasounds. Tests – like ultrasound scans or DNA tests – can reveal the body’s anatomy, while imaging scans and EKGs provide more information on the body’s internal functions.

What Physiology Tells Us About the Body ?

Doctors study many different organ systems using physiology, including:

✅ The cardiovascular system – your heart and blood vessels
✅ The digestive system – the stomach, intestines, and other organs that digest food
✅ The endocrine system – glands that make hormones, the chemicals that control many body functions
✅  The immune system – your body’s defense against germs and disease
✅ The muscular system – the muscles you use to move your body
✅  The nervous system – your brain, spinal cord, and nerves
✅ The renal system – your kidneys and other organs that control the fluid in your body
✅ The reproductive system – sex organs for men and women
✅ The respiratory system – your lungs and airways
✅ The skeletal system – bones, joints, cartilage, and connective tissue

Physicians need to know about chemistry and physics because this allows for a deeper understanding of the organs and other systems. For example, Physiologists have figured out how cells in the heart produce a beat by looking into its electrical activity. They’ve also researched how our eyes detect light, including how cells help convert photons into signals sent to the brain.

Physiology revolves around the human body and how it maintains a steady state while adapting to external conditions. Start by understanding how your organ systems keep your temperature relatively stable, even in different environments.



Uroflowmetry is a test measuring the volume of urine released from the body, the speed with which it is released, and how long it takes. Uroflowmetry diagnoses lower urinary tract symptoms (LUTS), such as weak stream, incomplete emptying, hesitancy, straining, post-void dribbling, and frequency.