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Glite Dictionary
calcarine fissure

calcarine fissure

9.9
A deep groove on the inner back part of the brain that holds the main area for sight
  • noun
  • /ˈkæl.kəˌraɪn ˈfɪʃ.ər/
  • Specialized
translation icon : fisura calcarina
  • The calcarine fissure is crucial for visual processing.

Examples

  • Damage near the calcarine fissure can result in partial loss of vision.

  • Brain scans often reveal the calcarine fissure as a prominent feature of the occipital lobe.

  • The primary visual cortex is located along the calcarine fissure of the occipital lobe.

  • Can you locate the calcarine fissure on this diagram?

  • The calcarine fissure is crucial for processing visual information in the brain.

  • Neuroscientists study the calcarine fissure to understand how we perceive images.

  • Damage to the calcarine fissure can lead to visual field deficits in patients.

Synonyms

calcarine sulcus
vscalcarine fissure
  • Specialized
9.9

Deep groove on the inner back part of the brain that contains the main area for vision

is a deep groove that specifically marks the location of primary visual cortex

Surface Forms

calcarine fissure singular
calcarine fissures plural

Morphology

calcarine + fissure

The noun 'fissure' straightforwardly denotes a long narrow anatomical groove, and 'calcarine' specifies the particular (calcarine) sulcus in the occipital region, so the phrase is compositionally a groove in that region. However, 'calcarine' is highly technical and requires anatomical knowledge to map to the medial occipital surface/primary visual cortex, so a typical B1 learner knowing the words may not derive the precise anatomical localization.

Etymology

Calcarine fissure may come from an old Latin word for 'spur' and the word fissure means a deep 'groove'. This long, spur-like groove at the back of the brain marks the main 'sight' area, so the name gives a simple picture of a spur-shaped split showing where sight is handled.