Sinoatrial node — Free Biology Illustration | GPAI | GPAI

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Sinoatrial node — Free Biology Illustration | GPAI | GPAI

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Sinoatrial node

Sinoatrial node

Biology

Sinoatrial node

A small compact oval to bean-shaped patch of specialized cardiac pacemaker tissue, pale yellow to orange-yellow, with a slightly nodular or subtly branched texture that distinguishes it from surrounding heart muscle. Shown as a tiny rounded structure embedded in the upper wall of the right atrium, representing the heart's pacemaker region.

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