Online courses directory (27)

Get a better understanding of how your lungs help you to sing and survive!. Meet the lungs. People and plants. The Bronchial Tree. Inhaling and Exhaling. How does Lung Volume Change?. The Lungs and Pulmonary System. Alveolar Gas Equation - Part 1. Alveolar Gas Equation - Part 2. O2 and CO2 solubility. Henry's law. Graham's Law of Diffusion. Fick's Law of Diffusion. Oxygen Movement from Alveoli to Capillaries. Peripheral Chemoreceptors. Central Chemoreceptors. The Respiratory Center. Sneeze, Cough, and Hiccup. Meet the lungs. People and plants. The Bronchial Tree. Inhaling and Exhaling. How does Lung Volume Change?. The Lungs and Pulmonary System. Alveolar Gas Equation - Part 1. Alveolar Gas Equation - Part 2. O2 and CO2 solubility. Henry's law. Graham's Law of Diffusion. Fick's Law of Diffusion. Oxygen Movement from Alveoli to Capillaries. Peripheral Chemoreceptors. Central Chemoreceptors. The Respiratory Center. Sneeze, Cough, and Hiccup.

Find out how preload, afterload, and contractility work together to change your PV Loop (and affect stroke volume and cardiac output)!. What is Preload?. What is afterload?. Increasing the Heart's Force of Contraction. Reimagine the Pressure Volume Relationship. What is Contractility?. Getting Ea (Arterial Elastance) from the PV Loop. Arterial Elastance (Ea) and Afterload. Arterial Elastance (Ea) and Preload. Stroke Work in PV Loops and Boxes. Contractility, Ea, and Preload Effects on PV Boxes. What is Preload?. What is afterload?. Increasing the Heart's Force of Contraction. Reimagine the Pressure Volume Relationship. What is Contractility?. Getting Ea (Arterial Elastance) from the PV Loop. Arterial Elastance (Ea) and Afterload. Arterial Elastance (Ea) and Preload. Stroke Work in PV Loops and Boxes. Contractility, Ea, and Preload Effects on PV Boxes.

Find out exactly what preload and afterload mean, and why most of us use a handy shortcut to guess-timating what they are!. Why Doesn't the Heart Rip?. What is Preload?. Preload and Pressure. Preload Stretches out the Heart Cells. Frank-Starling Mechanism. Sarcomere length-tension relationship. Active contraction vs. passive recoil. What is afterload?. Increasing the Heart's Force of Contraction. Why Doesn't the Heart Rip?. What is Preload?. Preload and Pressure. Preload Stretches out the Heart Cells. Frank-Starling Mechanism. Sarcomere length-tension relationship. Active contraction vs. passive recoil. What is afterload?. Increasing the Heart's Force of Contraction.

Find out what's inside of blood. What's Inside of Blood?. Hemoglobin moves O2 and CO2. Bohr Effect vs. Haldane Effect. Fetal Hemoglobin and Hematocrit. Oxygen Content. What's Inside of Blood?. Hemoglobin moves O2 and CO2. Bohr Effect vs. Haldane Effect. Fetal Hemoglobin and Hematocrit. Oxygen Content.

Check out the flow of positive charge through the heart that happens every time your heart beats! Learn how the heart is able to keep a regular rate and rhythm throughout your life. Membrane Potentials - Part 1. Membrane Potentials - Part 2. Permeability and Membrane Potentials. Action Potentials in Pacemaker Cells. Action Potentials in Cardiac Myocytes. Reseting Cardiac Concentration Gradients. Electrical System of the Heart. Depolarization Waves Flowing through the Heart. A Race to Keep Pace!. Thinking about Heartbeats. New Perspective on the Heart. Membrane Potentials - Part 1. Membrane Potentials - Part 2. Permeability and Membrane Potentials. Action Potentials in Pacemaker Cells. Action Potentials in Cardiac Myocytes. Reseting Cardiac Concentration Gradients. Electrical System of the Heart. Depolarization Waves Flowing through the Heart. A Race to Keep Pace!. Thinking about Heartbeats. New Perspective on the Heart.

Find out how the heart and circulatory system work in the fetus!. Meet the Placenta!. Umbilical vessels and the Ductus Venosus. Flow through the Heart. Hypoxic Pulmonary Vasoconstriction. Foramen Ovale and Ductus Arteriosus. Fetal Hemoglobin and Hematocrit. Double Bohr Effect. Fetal Circulation Right Before Birth. Baby Circulation Right After Birth. Fetal Structures in an Adult. Meet the Placenta!. Umbilical vessels and the Ductus Venosus. Flow through the Heart. Hypoxic Pulmonary Vasoconstriction. Foramen Ovale and Ductus Arteriosus. Fetal Hemoglobin and Hematocrit. Double Bohr Effect. Fetal Circulation Right Before Birth. Baby Circulation Right After Birth. Fetal Structures in an Adult.

MCAT Video Competition. MCAT Video Competition Details. How to make a video. MCAT Video Competition. MCAT Video Competition Details. How to make a video.