Which part of the human heart is considered as pace marker? Why it is so called?
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Q) Which part of the human heart is considered as pace marker?
A) In the upper part of the right atrium of the heart is a specialized bundle of neurons known as the sinoatrial node (SA node). Acting as the heart's natural pacemaker, the SA node "fires" at regular intervals to cause the heart of beat with a rhythm of about 60 to 70 beats per minute for a healthy, resting heart.
Q) Why it is so called?
A) Because It controls the heart rate by generating electrical impulses and then sending electrical signals through the heart muscle, causing the heart to contract and pump blood throughout the body. The heart beat originates from S.A. node and spreads to the walls of auricles which contract...
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Here is Your Answer =)
Q) Which part of the human heart is considered as pace marker?
A) In the upper part of the right atrium of the heart is a specialized bundle of neurons known as the sinoatrial node (SA node). Acting as the heart's natural pacemaker, the SA node "fires" at regular intervals to cause the heart of beat with a rhythm of about 60 to 70 beats per minute for a healthy, resting heart.
Q) Why it is so called?
A) Because It controls the heart rate by generating electrical impulses and then sending electrical signals through the heart muscle, causing the heart to contract and pump blood throughout the body. The heart beat originates from S.A. node and spreads to the walls of auricles which contract...
Hope it Helps You Out =)
Thanks (^^)
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The sino-atrial (SA) node is a specialised bundle of neurons located in the upper part of the right atrium of the heart. ... Since the SA node initiates and maintains the rhythmicity of the heart, it is known as the natural pacemaker of the human body
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