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

1. a sulcus in the mesial surface of the occipital lobe of the cerebrum