Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Sulcus (anatomy)
Introduction
Overview
Overview
A sulcus (pronounced with a hard c) (pl. sulci) is a depression or fissure in the surface of an organ, especially the brain.
Examples of sulci
Examples of sulci
In the brain
Elsewhere
- Sulcus arteriæ vertebralis
- Sagittal sulcus
- Sigmoid sulcus
- Tympanic sulcus
- Lacrimal sulcus (sulcus lacrimalis)
- Sulcus tubae auditivae
- Radial sulcus (musculospiral groove)
- Preauricular sulcus
- Malleolar sulcus
- Calcaneal sulcus
- Intermammary sulcus
- Interlabial sulci
- Anterior interventricular sulcus
- Posterior interventricular sulcus
- Urethral sulcus, in the baculum