The Wiggers diagram showing simultaneous events of the cardiac cycle in composite graphs is one of the most intimidating figures students encounter in their study of physiology. This paper describes a discovery learning activity that walks students through the construction of the Wiggers diagram by focusing on the core concepts of blood flow down…

The Nernst equation is key to understanding the electrophysiology of the cell membrane and the pathophysiology of K[superscript +] imbalances (i.e., hyperkalemia and hypokalemia). However, in our experience teaching medical students over the years, many students struggle to make connections between a brief introduction of the Nernst equation and…

The ability to understand the relationship between the reversal potential and the membrane potential is a fundamental skill that must be mastered by students studying membrane excitability. To clarify this relationship, we have reframed a classic experiment carried out by Hodgkin and Katz, where we compare graphically the membrane potential at…

This paper describes the design, construction, and use of an open-source hardware and software tool intended to help Anatomy and Physiology students test their knowledge of muscle actions and joint movements. Orientation sensors are attached to a model skeleton to turn the skeleton into an interactive, physical model for teaching limb movements. A…

As the Baby Boomer generation reaches old age, there has been a significant increase in the number of older adults needing healthcare over the past decade. The physiology of aging is therefore a highly relevant topic for the preclinical medical curriculum. I describe a new capstone unit on the physiology of aging, placed at the end a medical…

Understanding the gross organization of skeletal muscle is critical to understanding the mechanism of action of muscle physiology. Due to coronavirus disease-19 (COVID-19), many colleges have had to discontinue or curtail teaching and laboratory activities. Whether students are in the classroom or learning online, it is important for them to…

This paper describes the process involved in conducting an online spirometry practical through Zoom. The teacher demonstrated the practical from the medical school, and the students observed the procedure from the comfort of their own homes. Students were able to analyze the graphs captured in the teacher's laptop by remotely controlling the…

Functional understanding of the different parts of the cardiovascular system is essential for an insight into pathomechanisms of numerous diseases. During training cardiovascular physiology, students and early-stage medical personnel should understand the role of different functional parameters for systolic and diastolic blood pressure, as well as…

Using pop icons in the science classroom represents a creative way to engage often-distracted students in a relevant and, perhaps more importantly, fun way. When the pop icon is as universally known as Captain America, the pedagogical stage is set. However, when the movies can also be employed to link dramatic references to the science concepts at…

Renal transport is a central mechanism underlying electrolyte homeostasis, acid base balance and other essential functions of the kidneys in human physiology. Thus, knowledge of the anatomy and physiology of the nephron is essential for the understanding of kidney function in health and disease. However, students find this content difficult to…

Galen of Pergamon (130-200 A.D.) was an accomplished showman and scientist who made enormous advancements in the understanding of the heart, nervous system, and mechanics of breathing. These advancements were often achieved during impressive public "performances" of vivisection on Barbary apes and other living animals. These "shock…