Paracentral sulcus
Paracentral Sulcus is a structure found in the brain, specifically in the medial surface of the cerebral hemisphere. It is a continuation of the central sulcus, a prominent landmark of the brain's surface anatomy.
Etymology[edit | edit source]
The term "Paracentral Sulcus" is derived from the Latin words 'para', meaning 'near', and 'centralis', meaning 'central'. The term 'sulcus' is Latin for 'groove' or 'furrow'. Thus, the term refers to a groove or furrow near the central region of the brain.
Anatomy[edit | edit source]
The Paracentral Sulcus is located on the medial surface of the cerebral hemisphere, extending from the superior frontal gyrus to the precuneus. It separates the paracentral lobule from the cingulate gyrus. The anterior part of the sulcus is part of the frontal lobe, while the posterior part is part of the parietal lobe.
Function[edit | edit source]
The Paracentral Sulcus is involved in separating different functional areas of the brain. The anterior part of the sulcus, located in the frontal lobe, is associated with motor functions, while the posterior part, located in the parietal lobe, is associated with sensory functions.
Clinical Significance[edit | edit source]
Abnormalities or damage to the Paracentral Sulcus may result in various neurological conditions. For instance, a stroke affecting this area can lead to paracentral lobule syndrome, characterized by weakness or numbness in the contralateral lower limb and disturbances in bladder and bowel control.
Related Terms[edit | edit source]
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Contributors: Prab R. Tumpati, MD