Islands of Calleja

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Islands of Calleja

The Islands of Calleja (/kaˈleɪhɑː/; Spanish: [kaˈlexa]) are a group of granule cells located in the olfactory tubercle and nucleus accumbens of the brain. They were first described by the Spanish neurologist Julio Calleja in 1893.

Etymology

The term "Islands of Calleja" is named after Julio Calleja, who first described these structures. The term "islands" refers to the distinct clusters of granule cells that these structures are composed of.

Structure

The Islands of Calleja are composed of clusters of granule cells. These cells are small neurons that are densely packed together. They are located in the olfactory tubercle and the nucleus accumbens, both of which are part of the ventral striatum.

Function

The exact function of the Islands of Calleja is not fully understood. However, they are believed to play a role in olfactory processing and reward-related behavior due to their location in the olfactory tubercle and nucleus accumbens.

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