Khan Academy
Khan Academy: Pressure Volume Loops: Left Ventricular Pressure vs. Time
Ever wonder exactly how the left ventricle's pressure changes over time? Find out in this color-coded video! Rishi is a pediatric infectious disease physician and works at Khan Academy. [10:51]
PBS
Pbs Learning Media: Crash Course Anatomy and Physiology: The Heart, Part 1: Under Pressure
Your heart gets a lot of attention from poets, songwriters, and storytellers, but today we'll learn how it really works. The heart's ventricles, atria, and valves create a pump that maintains both high and low pressure to circulate blood...
Curated OER
Kids Health: The Circulatory System
This short movie gives you a fun way to learn the basics of the heart and how the circulatory system works. From KidsHealth.
Crash Course
Crash Course A&p #25: The Heart, Part 1 Under Pressure
Your heart gets a lot of attention from poets, songwriters, and storytellers, but today Hank's gonna tell you how it really works. The heart's ventricles, atria, and valves create a pump that maintains both high and low pressure to...
Curated OER
Kids Health: Going to the Doctor
This article tells what it is like to have a check-up at the doctor's office. Knowing what to expect takes away your fear and worry.
Khan Academy
Khan Academy: Hypertension: Hypertension Effects on the Heart
Learn about two major heart problems that hypertension can cause. Rishi is a pediatric infectious disease physician and works at Khan Academy. [7:19]
Khan Academy
Khan Academy: Blood Pressure: Adding Up Resistance Problem
Here's a chance to see if you can combine what you know to add up resistance in series AND in parallel. Rishi is a pediatric infectious disease physician and works at Khan Academy. [3:22]
Khan Academy
Khan Academy: Blood Pressure: Resistance in a Tube
Learn how the size of a tube (it's radius) is related to its resistance to something flowing through. Rishi is a pediatric infectious disease physician and works at Khan Academy. [8:53]
Khan Academy
Khan Academy: Blood Pressure: A Stethoscope Determines Blood Pressure
Learn how Dr. Korotkoff cleverly used a stethoscope to determine blood pressure, and that we still use his trick today! Rishi is a pediatric infectious disease physician and works at Khan Academy. [5:27]
Khan Academy
Khan Academy: Changing the Pv Loop: Stroke Work in Pv Loops and Boxes
Watch how PV loops can be "morphed" into PV boxes to make drawing them and thinking about them much simpler. Rishi is a pediatric infectious disease physician and works at Khan Academy.
Khan Academy
Khan Academy: Changing the Pv Loop: Arterial Elastance (Ea) and Preload
Understand how EA is affected by changes in preload, and in turn, how the PV loop can shift. Rishi is a pediatric infectious disease physician and works at Khan Academy.
Khan Academy
Khan Academy: Changing the Pv Loop: Arterial Elastance (Ea) and Afterload
First, learn the difference between arterial elastance (EA) and afterload. Then, understand how EA is affected by changes in afterload, and in turn, how the PV loop can shift. Rishi is a pediatric infectious disease physician and works...
Khan Academy
Khan Academy: End Systolic Pressure Volume Relationship (Espvr)
Find out what happens when the left ventricle is not allowed to relax, and instead you simply add and take away blood from it. Rishi is a pediatric infectious disease physician and works at Khan Academy.
Khan Academy
Khan Academy: Pressure Volume Loops: Left Ventricular Volume vs. Time
Left ventricular volume changes over time in a way that makes a curious looking graph. Learn more in this video! Rishi is a pediatric infectious disease physician and works at Khan Academy.
Khan Academy
Khan Academy: Pressure Volume Loops: What Is Preload?
Some say Preload = End-Diastolic Pressure, others say Preload = End-Diastolic Volume, so which one is it? Watch and find out! Rishi is a pediatric infectious disease physician and works at Khan Academy.
Khan Academy
Khan Academy: Blood Pressure: Flow and Perfusion
Learn the difference between blood flow (volume/time) and perfusion (volume/time/amount of tissue). Rishi is a pediatric infectious disease physician and works at Khan Academy. [10:31]
Khan Academy
Khan Academy: Blood Pressure: Adding Up Resistance in Series and in Parallel
Learn about how resistance can be added up in series and in parallel (similar to electrical circuits!). Rishi is a pediatric infectious disease physician and works at Khan Academy. [10:33]
Khan Academy
Khan Academy: Blood Pressure: Pressure, Flow, & Resistance
See how pressure, flow, and resistance relate to one another and how they each affect the human body. Rishi is a pediatric infectious disease physician and works at Khan Academy. [11:50]
Khan Academy
Khan Academy: Blood Pressure: What Is Blood Pressure?
Find out what a systolic and diastolic blood pressure mean. Rishi is a pediatric infectious disease physician and works at Khan Academy. [6:21]
Khan Academy
Khan Academy: Arterial Stiffness: Compliance Decreased Blood Pressure
Find out how compliance allows arteries to store elastic energy (and lower pressure). [9:54]
Khan Academy
Khan Academy: Pressure Volume Loops: Pressure in the Left Heart Part 1
Watch the pressure in the left heart go up and down with every heart beat! This video lecture focuses on following the blood as it moves from the left artium and exploring the pressure as it moves through the heart. [14:58]
Khan Academy
Khan Academy: Blood Pressure Changes Over Time
See how increasing resistance in the blood vessels can cause blood pressure to rise over time. [11:25]
Khan Academy
Khan Academy: Angiotensin 2 Raises Blood Pressure
See how Angiotensin 2 effects 4 target 'organs' to increase blood pressure. [10:40]
Khan Academy
Khan Academy: Activating Angiotensin 2
See how Renin and ACE work to cut angiotensinogen down to size. [10:18]