calcarine sulcus
Học thuậtThân thiện
Definition
Noun: A prominent anatomical groove or furrow located on the medial (inner) surface of the occipital lobe of the cerebrum. It is a key landmark that separates the primary visual cortex (area V1) into upper and lower halves and is crucial for processing visual information.
Examples of Usage
- The calcarine sulcus is the site of the primary visual cortex.
- Brain imaging studies often focus on activity within the calcarine sulcus.
- A lesion affecting the calcarine sulcus can result in a specific visual field defect.
Advanced Usage
- "Calcarine sulcus activation": A term used in neuroscience to describe neural activity detected in this region during visual tasks.
- The fMRI scan showed strong calcarine sulcus activation when the subject viewed the checkerboard pattern.
Variants and Related Words
- Calcarine fissure: A synonymous term for the calcarine sulcus.
- Striate cortex: The primary visual cortex (Brodmann area 17) which is located within the banks of the calcarine sulcus.
Synonyms
- Calcarine fissure
Related Terms (Anatomical Context)
- Sulcus: A general term for a groove or furrow on the surface of the brain.
- Occipital lobe: The rearmost lobe of the cerebrum, primarily responsible for visual processing.
- Primary visual cortex (V1): The cortical region housed within the calcarine sulcus.
Noun
- a sulcus in the mesial surface of the occipital lobe of the cerebrum