central sulcus: meaning, definition, pronunciation and examples
C2Academic / Technical (Medical, Neuroscience)
Quick answer
What does “central sulcus” mean?
A deep, consistent groove or fissure in the cerebral cortex of the brain, separating the frontal lobe from the parietal lobe.
Audio
Pronunciation
Definition
Meaning and Definition
A deep, consistent groove or fissure in the cerebral cortex of the brain, separating the frontal lobe from the parietal lobe.
It is a key anatomical landmark in neuroanatomy, often used as a reference point for describing the location of functional areas of the brain, such as the primary motor and somatosensory cortices.
Dialectal Variation
British vs American Usage
Differences
The term itself is identical. The synonymous term 'fissure of Rolando' is also used in both, but more common in older or historical texts.
Connotations
Identical technical connotations in both varieties.
Frequency
Equally low frequency and confined to specialised discourse in both UK and US contexts.
Grammar
How to Use “central sulcus” in a Sentence
The central sulcus [verb: separates, divides] X from Y.X [verb: is located, lies, runs] along/adjacent to the central sulcus.Vocabulary
Collocations
Examples
Examples of “central sulcus” in a Sentence
verb
British English
- The surgeon must carefully navigate around the central sulcus.
American English
- The neurosurgeon mapped the area central to the sulcus.
adverb
British English
- The lesion was situated centrally, just superior to the sulcus.
American English
- The tumour was located centrally, near the sulcus.
adjective
British English
- The central sulcal pattern is a key identifying feature.
American English
- Central sulcal anatomy varies between individuals.
Usage
Meaning in Context
Business
Never used.
Academic
Exclusively used in neuroscience, anatomy, psychology, and medical textbooks/research.
Everyday
Virtually never used.
Technical
The primary context. Used in surgical planning, neuroimaging reports, and clinical neurology.
Vocabulary
Synonyms of “central sulcus”
Vocabulary
Antonyms of “central sulcus”
Watch out
Common Mistakes When Using “central sulcus”
- Mispronunciation: /ˈsʌlkjʊs/ (incorrect) vs. /ˈsʌlkəs/ (correct).
- Confusing it with the lateral sulcus (Sylvian fissure).
- Using it in non-anatomical contexts.
FAQ
Frequently Asked Questions
Its general location and function are consistent, but its exact depth and folding pattern can vary between individuals.
It is named after Luigi Rolando, an Italian anatomist who described it in detail in the early 19th century.
No, it is a feature on the surface of the brain itself, not the skull.
Damage to the cortex adjacent to the sulcus can cause motor or sensory deficits, such as paralysis or loss of sensation on the opposite side of the body, depending on the exact location.
A deep, consistent groove or fissure in the cerebral cortex of the brain, separating the frontal lobe from the parietal lobe.
Central sulcus is usually academic / technical (medical, neuroscience) in register.
Central sulcus: in British English it is pronounced /ˌsɛntrəl ˈsʌlkəs/, and in American English it is pronounced /ˌsɛntrəl ˈsʌlkəs/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None.”
Learning
Memory Aids
Mnemonic
Imagine a CENTRAL line drawn on the brain (central) that's a deep SULK (sulcus) separating two arguing neighbours: the Frontal lobe (planning/movement) and the Parietal lobe (sensation).
Conceptual Metaphor
A GROOVE or VALLEY in the landscape of the brain; a BORDER or DEMARCATION LINE between two functional regions.
Practice
Quiz
What is the primary function of identifying the central sulcus in neuroscience?