Carotid sinus — Free Physiology Illustration

Physiology

Carotid sinus

A short segment of artery at or near the carotid bifurcation, showing the carotid sinus as a distinct localized bulbous dilation at the origin of the internal carotid artery. The vessel is smooth-walled and tubular, colored red to pink-red, with a gently rounded widened region near one end that broadens into a bulb-like pocket before narrowing back to the adjoining vessel segments. A central lumen is visible and slightly wider within the expanded sinus region; the arterial segment may be slightly curved and rendered as a simplified vascular clipart-style structure with rounded contours.

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