The normal, or natural, pacemaker of the heart is the sinoartial node, it passes the action potential to the ventricular node, which slows it down long enough for the ventricles to fill up with blood. Then the second contraction is triggered by the action potential traveling down the Bundle of His, or atrioventricular bundle, and then spread out the signal to the Purkinje fibers which transmit the action potentiall to all parts of the ventricles.
Describe the pathway of blood through the heart and lungs relating to pressure and volume? Describe the pathway of blood through the heart and lungs relating to pressure and volume?
An abnormal, rapid heart rhythm, due to an extra pathway for the electrical impulses to travel from the atria to the ventricles.
each part contracts in a specific order. Contraction of the muscle is triggered by an electrical impulse. These electrical impulses travel through specialized cells that form a conduction system. Following this pathway ensures that contractions will
The atria and ventricles work together, alternately contracting and relaxing to pump blood through your heart. The electrical system of your heart is the power source that makes this possible. Your heartbeat is triggered by electrical impulses that travel down a special pathway through the heart.
Complete heart block is where the electrical impulses from the SA node of the heart cannot reach the ventricles along the normal pathway. Instead the atrial contract from the SA node singles and the ventricles contract from the ventricular cells
Pacemaker is located in the right atrium and generates electrical impulses to start a muscle contraction in the heart.
Parasympathetic impulses and cause the heart rate to decrease.
Nerve impulses come through the sinus node of the heart to the bundle of His and then move into the right and left bundle branches.
While the question seems a bit unclear, in reference to electricle pathways: an extra pathway in the heart is termed an "accessory" pathway.
The blood goes through the heart in the correct direction because there are a number of one-way valves in the heart chambers that blood can only pass through in the correct direction.
Heart block is the term meaning interruption of electrical impulses in the heart's conduction system.
Interruption of the impulses in the heart's conduction system is known as heart block. Heart block may be caused by scar tissue from a heart attack, among other things.