Sinoatrial Node (Noun)
Meaning
A specialized bit of heart tissue that controls the heartbeat.
Classification
Nouns denoting body parts.
Examples
- The sinoatrial node, located in the right atrium, acts as the heart's natural pacemaker, generating electrical impulses that regulate the heartbeat.
- Damage to the sinoatrial node can disrupt the normal rhythm of the heartbeat, leading to arrhythmias or other cardiac problems.
- The sinoatrial node is a small group of specialized cells that produce electrical signals at a rate of around 60-100 beats per minute.
- In a normal heart, the sinoatrial node is the primary source of electrical activity, controlling the contraction and relaxation of the heart muscle.
- Abnormalities in the sinoatrial node can be treated with medications or implantable devices, such as pacemakers, to restore a normal heartbeat.