SA Node Explained | The Natural Pacemaker of the Heart | Healocity

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In this video, we’ll explain the SA Node (Sinoatrial Node) — known as the natural pacemaker of the heart.
It’s the tiny cluster of cells that generates the electrical impulses responsible for each heartbeat.

🔹 Topics Covered:

What is the SA Node?

Location and Structure of SA Node

How the SA Node Generates Electrical Impulses

Role in Heart Rate Regulation

Pathway of Impulse Conduction (SA Node → AV Node → Bundle of His → Purkinje Fibers)

Autonomic Nervous System Control (Sympathetic & Parasympathetic Influence)

Disorders Related to SA Node (Sinus Bradycardia, Tachycardia, Sick Sinus Syndrome)

Artificial Pacemakers and Their Function

💡 With realistic medical animation, this video helps medical and nursing students clearly understand how the heart’s electrical conduction system works.

📘 Perfect for:

Medical, Nursing & Paramedical Students

Anatomy & Physiology Learners

Cardiology Students

Health Science Educators

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