AMYGDALINE FISSURE Meaning and
Definition
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The amygdaline fissure is a term used in neuroanatomy to describe a prominent fissure or groove found in the structure of the brain called the amygdala. The amygdala is an almond-shaped cluster of neurons located deep within the temporal lobes of the brain. It plays a crucial role in the processing and regulation of emotions, particularly fear and aggression.
The amygdaline fissure is a distinct boundary or division that separates the two principal subdivisions of the amygdala, known as the basal nucleus and the lateral nucleus. This fissure extends into the surrounding brain tissue and serves as a landmark for properly identifying and distinguishing these different subregions of the amygdala.
The basal nucleus, located closer to the center of the brain, is involved in emotional and motivational responses, as well as the integration of sensory information. In contrast, the lateral nucleus plays a role in fear conditioning and the formation of emotional memories.
Understanding the anatomy and location of the amygdaline fissure is essential for neuroscientists, psychologists, and researchers studying emotions and emotional disorders. It provides a key reference point for accurately identifying and targeting specific areas within the amygdala that are implicated in various emotional processes, which in turn helps in investigating the underlying neurological basis of emotions and associated psychological phenomena.
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Incisura temporalis, a fissure on the ventral aspect of the temporal lobe near its pole.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for AMYGDALINE FISSURE
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Etymology of AMYGDALINE FISSURE
The term "amygdaline fissure" is derived from combining two components: "amygdaline" and "fissure".
The word "amygdaline" comes from the Latin term "amygdala", which means "almond". It refers to the amygdalae, a pair of small, almond-shaped structures located in the brain. The term "amygdaline" is used to describe something related to or resembling the amygdala.
The word "fissure" comes from the Latin term "fissura", which means "a cleft or groove". In anatomy, a fissure refers to a long, narrow opening or separation between parts of an organ or tissue.
Therefore, when combined, the term "amygdaline fissure" refers to a specific groove or separation in the brain related to the amygdala.
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