Calcar avis
Calcar avis
Calcar avis (pronunciation: /ˈkalkɑːr ˈeɪvɪs/), also known as the Bird's Spur, is a small bony structure found in the human brain. The term is derived from the Latin words 'calcar' meaning 'spur' and 'avis' meaning 'bird'.
Anatomy
The Calcar avis is located in the medial part of the occipital lobe, adjacent to the corpus callosum. It is a prominent convolution of the lateral ventricle's posterior horn, visible in the occipital horn's medial wall.
Function
The exact function of the Calcar avis is not fully understood. However, it is believed to be involved in the processing of visual information, particularly in relation to depth perception.
Clinical Significance
The absence or underdevelopment of the Calcar avis, known as Calcarine Fissure Syndrome, can lead to a range of neurological symptoms, including visual field defects and hallucinations. This condition is often associated with schizophrenia and other psychiatric disorders.
Related Terms
- Calcarine Fissure: A deep groove in the occipital lobe, adjacent to the Calcar avis.
- Occipital Lobe: The region of the brain where the Calcar avis is located.
- Corpus Callosum: A large bundle of nerve fibers that connects the two cerebral hemispheres.
- Lateral Ventricle: A set of paired structures in the brain where the Calcar avis is found.
External links
- Medical encyclopedia article on Calcar avis
- Wikipedia's article - Calcar avis
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