Sinoatrial Node


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

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).