Sinoatrial Node

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Is a:
  • Body Part, Organ, or Organ Component
Definition:
The small mass of modified cardiac muscle fibers located at the junction of the superior vena cava (vena cava, superior) and right atrium. Contraction impulses probably start in this node, spread over the atrium (heart atrium) and are then transmitted by the atrioventricular bundle (bundle of his) to the ventricle (heart ventricle).
Synonyms:
  • Node, Sino-Atrial
  • Node, Sinoatrial
  • Node, Sinu-Atrial
  • Node, Sinuatrial
  • Node, Sinus
  • Nodes, Sino-Atrial
  • Nodes, Sinoatrial
  • Nodes, Sinu-Atrial
  • Nodes, Sinuatrial
  • Nodes, Sinus
  • Sino Atrial Node
  • Sino-Atrial Node
  • Sino-Atrial Nodes
  • Sinoatrial Nodes
  • Sinu Atrial Node
  • Sinu-Atrial Node
  • Sinu-Atrial Nodes
  • Sinuatrial Node
  • Sinuatrial Nodes
  • Sinus Node
  • Sinus Nodes
Broader Topics:
Narrower Topics:
  • None
Possibly Related Topics: