calcarine fissure
Học thuậtThân thiện
Definition
- Noun:
- A specific anatomical groove in the brain: The "calcarine fissure" is a prominent sulcus (a groove or furrow) located on the inner (mesial) surface of the occipital lobe of the cerebrum. It is a key landmark in the brain's visual cortex.
Examples of Usage
- Noun:
- The primary visual cortex is located along the walls of the calcarine fissure.
- An MRI scan clearly showed the calcarine fissure in both cerebral hemispheres.
Advanced Usage
- "Calcarine" as a descriptor: The term "calcarine" is derived from Latin , meaning "spur," due to the fissure's shape. It is almost exclusively used in the compound anatomical term "calcarine fissure" or "calcarine sulcus."
- The calcarine cortex refers to the cortical tissue surrounding the calcarine fissure.
Variants and Related Words
- Calcarine sulcus: A direct synonym for "calcarine fissure." In neuroanatomy, "fissure" and "sulcus" are often used interchangeably for major grooves.
- Occipital lobe: The region of the cerebrum where the calcarine fissure is located.
- Primary visual cortex (V1) / Striate cortex: The functional area of the brain that is housed within the calcarine fissure.
Synonyms
- Calcarine sulcus: The most precise and common synonym.
Related Phrases
(This term is a specific anatomical noun and does not have associated phrasal verbs or idioms.)
Noun
- a sulcus in the mesial surface of the occipital lobe of the cerebrum