Lung Model and Breathing
Breathing The lungs are located in the thoracic cavity, which is surrounded by the ribs and the diaphragm. Because the lungs do not have muscles of their own, they cannot move by themselves. Instead, movements of … more
Biology Simulation
The digestive system viewed from the perspective of topology (digestive tract, digestive process)
The Digestive Tract from a Topological Perspective In topology, the exact length, thickness, or curvature of an object is less important than its connectivity and the number of holes it has—properties that remain unchanged as long … more
Heart Rate Counter
Pulse Blood vessels are elastic. When the heart contracts, the blood vessels dilate; when the heart relaxes, the vessels constrict. Hemoglobin in the blood absorbs particular light. Therefore, when light is applied to human tissue, the … more
Blocklab – Biological Classification Coding
Blocklab – Biological classification coding Code the process of classifying biological organisms by assembling blocks. Enter the name of the organism you want to analyze below, then press the Enter key or click the Classify ↵ … more
Connections of Neuron (nervous system, neural network)
About this simulation This simulation allows you to connect and test various neurons. Inspired by logic circuits, we created three types of neurons: ‘AND’, ‘OR’, and ‘NOT’. In reality, human Interneurons(association neurons) are much more complexly … more
Reaction time measuring (visual, auditory, tactile)
Reaction time It takes a while for a person to react to a stimulus. This is because the signal needs time to be transmitted and processed. The reaction time for the three stimuli of visual, auditory, … more
Movement of substances in the nephron
Nephron The kidneys in our body extract urine (waste) from the blood. The kidneys are fist-sized and are located on the left and right behind the waist. The blood vessel that enters the kidney is the … more
Ecosystem Simulation v2
About this simulation The length of the red bar shows the vitality. It gradually decreases with time. When the vitality is zero, it naturally dies. The green bars show stamina (nutritional status). If it is short, … more
Iris and Ciliary Body
Iris muscles In the iris, the ‘Iris sphincter muscle’ constricts the pupil, and the ‘Iris dilator muscle’ enlarges the pupil. Both muscles work in reverse, controlling the size of the pupil. Ciliary body connected to the … more
PCR (Polymerase Chain Reaction)
Find the task sequence to amplify DNA. PCR (Polymerase Chain Reaction) PCR is a method for repeatedly amplifying a specific gene sequence from a small DNA sample. PCR goes through three basic steps. DNA denaturation Heat … more
Evolution of the eye
Flagellate Hundreds of millions of years ago, light-sensing organelles arose inside the monad. Creatures with ‘photoreceptors’ are able to distinguish day and night and can also avoid harmful ultraviolet light. Flatworm And these photoreceptors have evolved … more