This site uses cookies. By continuing to browse the site, you are agreeing to our use of cookies. More information about cookies is available in our privacy policy Got it

Blausen Menu
Search
Current language eng

All Topics

  • Anatomy & Physiology
  • Cancer
  • Cellular
  • Chemistry
  • Circulatory
  • Conditions
  • Digestive
  • Drug
  • Ear
  • Endocrine
  • Eye
  • Immune
  • Integumentary (Skin)
  • Muscular
  • Neurology
  • Orthopedic
  • Pediatric
  • Reproductive
  • Respiratory
  • Skeletal
  • Tests and Treatments
  • Urinary

Explore

  • 3D Body System

About Us

  • Blausen Medical
  • Products And Services
  • Contact Us
Select language
  • Arabic
  • Chinese
  • Chinese (Cantonese)
  • Danish
  • Dutch - The Netherlands
  • English (Great Britain)
  • French
  • German
  • Hungarian
  • Italian
  • Japanese
  • Korean
  • Norwegian
  • Portuguese - Brazil
  • Portuguese - Portugal
  • Romanian
  • Russian
  • Spanish
  • Spanish (Latin America)
  • Swedish
  • Turkish

Videos

 

Conduction System

1605
Share
Topics:
  • Anatomy & Physiology
  • Circulatory
PDF:
  • View disclaimer
GoGoMeds

The heart is a beating muscle that continually pumps blood to the rest of the body. What we commonly call a heartbeat is actually the rhythmic contraction of the heart's four chambers. Each heartbeat is stimulated by electrical signals that travel through a specific nerve pathway in the heart. These signals can be tracked and recorded by an electrocardiogram, or EKG. The heart's electrical signal begins at the sino-atrial node, or SA node, which is located in the top right chamber, or atrium. The signal then travels to both the right and left atria, causing them to contract and push blood into the lower chambers, or ventricles. The electrical signal continues into the ventricles via the atrioventricular node, or AV node, and then into the tissue that separates the ventricles, called the bundle of His. The signal continues down the bundle and into the left and right bundle branches, located within the ventricles. When the signal reaches bundle branches, it causes the ventricles to contract and pump blood to the lungs and body, completing the heartbeat. The conduction system functions as the body's own pacemaker and keeps the heart beating at a normal rate of 60 to 100 beats per minute. If the activity of this system is interrupted due to heart damage or other medical conditions, it can cause the heart to beat at an abnormal rate or with an irregular rhythm. Should this occur, blood flow to the brain and other parts of the body could be compromised.

Duration: 01:41

Published: 11/17/2015

Related videos

Overview of the Cardiac Cycle 02:45 02:45

Overview of the Cardiac Cycle

Topics: Anatomy & Physiology, Circulatory
Overview of Heart Anatomy and Physiology 01:57 01:57

Overview of Heart Anatomy and Physiology

Topics: Anatomy & Physiology, Circulatory
Nodal System 01:27 01:27

Nodal System

Topics: Anatomy & Physiology, Circulatory
Radiofrequency Ablation 02:12 02:12

Radiofrequency Ablation

Topics: Circulatory, Tests and Treatments
0

Other videos

Skeletal System (Male) 00:29 00:29

Skeletal System (Male)

Topics: Anatomy & Physiology, Orthopedic, Skeletal
Neural Tissue: From Exterior to Cellular View 00:17 00:17

Neural Tissue: From Exterior to Cellular View

Topics: Anatomy & Physiology, Neurology
Knee Joint 00:15 00:15

Knee Joint

Topics: Anatomy & Physiology, Orthopedic, Skeletal
Pronation and Supination of the Hand 00:14 00:14

Pronation and Supination of the Hand

Topics: Anatomy & Physiology, Orthopedic, Skeletal
Gliding Joint 00:12 00:12

Gliding Joint

Topics: Anatomy & Physiology, Orthopedic, Skeletal
0
Filter by Topics:
  • All
  • Anatomy & Physiology
  • Circulatory
ACE Inhibitors 02:39 02:39

ACE Inhibitors

The heart is a beating muscle that pumps blood to the body through a network of arteries. The force of the blood is constantly putting pressure on the inside walls of blood vessels...
AIDS 01:35 01:35

AIDS

White blood cells, which are produced in the bones, are a major component of the body's immune system. When an infectious organism such as a virus or bacteria enters the body, the ...
Abdominal Aneurysm 00:57 00:57

Abdominal Aneurysm

The aorta is the main artery of the circulatory system. Its function is to carry oxygen-rich blood from the heart to the rest of the body. It is divided into two main sections; the...
Abduction and Adduction of the Arm 00:28 00:28

Abduction and Adduction of the Arm

Abduction is movement away from the midline of the body while adduction is movement towards the midline of the body. An example of this movement is swinging the upper limb to the s...
Abnormal Hemostasis: Central Venous Access Device Clot 01:29 01:29

Abnormal Hemostasis: Central Venous Access Device Clot

When central venous access devices are inserted into the bloodstream, their surface becomes coated with fibrin and other circulating plasma proteins. In most short term situations,...
Abnormal Hemostasis: Embolus Causes a Stroke 00:33 00:33

Abnormal Hemostasis: Embolus Causes a Stroke

The vertebral arteries are two major arteries supplying the brain. They pass through small openings in the cervical vertebrae called the transverse foramen. If the vertebral artery...
See More
703
 
Blausen

Blausen Medical
Scientific and Medical Animations

Copyright ©2021 ALL RIGHTS RESERVED
Disclaimer
Privacy Policy

Explore:

  • 3D Body System

About Us:

  • Blausen Medical
  • Products And Services
  • Contact Us

We're social

Stay connected with all of the latest
on your favorite social media platform.

  • Facebook
  • Google plus
  • Twitter
  • Youtube
  • LinkedIn