Join the Amoeba Sisters as they introduce the cardiac conduction system! This video mentions conductive cardiac cells (focusing on pacemaker cells) in the SA and AV nodes and discusses general steps of spontaneous depolarization. It also...

Today we're talking the heart and heart throbs -- both literal and those of the televised variety. Hank explains how your heart's pacemaker cells use leaky membranes to generate their own action potentials, and how the resulting...

Let's dive into the cardiac action potential and how it results in the contraction of the heart. We'll talk about the signal that starts at the SA node and spreads throughout the heart. We'll also get into the phases of depolarization,...

In this video, I talk about the pacemaker potential of the heart. We're going to dig into the SA and AV Nodes, how they work, and what happens when things go wrong.<br/>

Unlock the mysteries of the human heart with this comprehensive and easy-to-understand tutorial on EKG interpretation! We'll break down the basics of electrocardiogram analysis and help you master reading EKGs in no time. Whether you're...

This video tutorial briefly covers the sympathetic and parasympathetic role on heart innervation. It focuses on the following: - Sympathetic neurotransmitters (epinephrine and nor-epinephrine) and receptors (adrenergic). -...

In this video, we discuss how the electrical conduction system generates a pacemaker potential by viewing the action potential diagram.

In this video, we explore the structure and functions of the major branches of cranial nerve IX (the vagus nerve), specifically in the thoracic cavity with emphasis on the major nuclei in the medulla.

In this video, the teacher explains how the heart is able to contract dependably through its natural pacemaker, the SA node, and other specialized cells. The electrocardiogram (ECG) is also discussed as a highly effective method of...

This video tutorial discusses Adrenergic receptors: 0:00. Intro 0:16. What are adrenergic receptors? 0:26. There are 2 types of adrenergic receptors 0:42. G-Protein coupled receptors that act through 2nd messengers 2:01. Alpha adrenergic...

The cardiac cycle looks at all of the things that happen from the beginning of one heartbeat to the beginning of another. Phase 2 of the cardiac cycle is called Isovolumetric Ventricular Contraction. We cover the QRS complex of the EKG,...

In this episode, I talk about how the Pacemaker Potential results in the signal that causes the heart to beat. I show how the greater conductance for Sodium ions in the Pacemaker Cells in the S.A. Node cause the cells to depolarize,...

In this episode, I show how the Action potential is generated in cardiac muscle cells and how this results in Contraction of the Heart. When the action potential happens, calcium ions are released from the Sarcoplasmic reticulum, causing...

In this video, we explore the biochemical events that take place during the action potential of an individual cardiomyocyte.

In this video, we discuss the components of and functions of the electrical conduction system of the heart.

In this playlist, we discuss clinically relevant EKG patterns. This video specifically covers supraventricular tachycardia (and its basic mechanism).

This brief tutorial covers the conduction system of the heart