Category: The Circulatory System
058 Net Hydrostatic Pressure and Filtration Pressure
2.98K Views74 Comments4 Likes
How do the differences in hydrostatic and osmotic pressures affect the flow of blood within the circulatory system and to the different parts of the body? What is filtration pressure and how are these affected during ...
057 Pressure Reflexes and Mean Arterial Pressure
2.31K Views24 Comments4 Likes
Here is an interesting concept about pressure reflexes that you might want to watch. It is related to the mean arterial pressure of a man. Learn more by watching another one of Leslie's easy videos to help you underst...
056 Regulating Peripheral Resistance – Part 2
2.28K Views33 Comments4 Likes
Here is the second part of Regulating Peripheral Resistance. Leslie explains two more ways on how it can be influenced and how it affects someone's blood pressure and mean arterial pressure. Watch to learn more! Have...
055 Regulating Peripheral Resistance – Part 1
2.79K Views33 Comments8 Likes
As promised, here is a video focusing on peripheral resistance. Understand what it is and how it affects mean arterial pressure by watching along and listening as Leslie once again explains the concept with full clari...
054 Blood Pressure and Mean Arterial Pressure
4.67K Views76 Comments8 Likes
[DAP isPaidUser="Y" hasAccessTo="3" errMsgTemplate=""]…private…[/DAP] What does blood pressure really mean? What does it actually measure? Watch, listen, and learn as Leslie once again explains clearly and makes it...
053 Cardiac Output
2.72K Views36 Comments7 Likes
Learn more about calculating cardiac output and how changing stroke volume and heart rate can increase or decrease its value. Have fun! Transcript of Today's Episode Hello and welcome to another episode of Intera...
052 The Cardiac Cycle
13.97K Views186 Comments53 Likes
Ever wonder what happens in a heartbeat? What happens inside our heart when we hear the 'lub-dub' sound? Watch and see as Leslie describes in full detail what a cardiac cycle is and how this is reflected in one heart...
051 Isovolumetric Contraction
1.92K Views42 Comments2 Likes
Isovolumetric contraction is that stage when the ventricles continue to contract even though the blood volume stays the same. How and when exactly do this happen? Watch to learn more. Enjoy! Transcript of Today...
050 Regulating Stroke Volume, Skeletal Muscle Pump and Frank-Starling Mechanism
2.40K Views51 Comments2 Likes
Here, Leslie discusses how stroke volume can be regulated. Depending on which factors are changed, blood volume entering the heart may increase and in effect increasing heart contraction too. Watch, listen, and learn ...
049 What Stroke Volume is and How to Calculate It
3.53K Views121 Comments6 Likes
Stroke Volume = EDV - ESV What do these mean? Watch to learn more and understand about stroke volume. Enjoy! Transcript of Today's Episode Hello and welcome to another episode of Interactive-Biology TV where we’re...
048 How to Read an Electrocardiogram (ECG/EKG)
13.04K Views188 Comments22 Likes
Have you seen an ECG reading? What do those lines mean? How does it measure heart activity? Watch and learn as Leslie once again teaches us about this topic. Enjoy! Transcript of Today's Episode Hello and welcome ...
047 Action Potentials and Contraction in Cardiac Muscle Cells
6.32K Views100 Comments7 Likes
Leslie explains how action potentials are generated by the cardiac cells of the heart and how the release of calcium can generate heart contraction. Watch to learn more. Enjoy! Transcript of Today's Epi...
046 How Adrenaline and Acetylcholine Affect Heart Rate
7.98K Views61 Comments8 Likes
In this episode, Leslie discusses the effect of adrenaline and acetylcholine on heart rate. These two modifies the conductance of the ions across the membranes of the cells of the SA node causing either an increase or...
045 The Pacemaker Potential of the SA Node and the AV Node
5.63K Views142 Comments11 Likes
In this episode, Leslie talks about how a pacemaker potential can cause a heart to beat automatically. Details about how it is generated is discussed in this video. Just how does this happen, our heart beating again a...
044 How Blood Flows Through the Heart
6.03K Views414 Comments21 Likes
How does the blood move around the body? What is the role of the heart in bringing blood to all the different parts of the body? Watch and see as Leslie gives an overview of the Circulatory System, the first in this ...
