What does the hippocampus represent?

What does the hippocampus represent?

Hippocampus is a complex brain structure embedded deep into temporal lobe. It has a major role in learning and memory. It is a plastic and vulnerable structure that gets damaged by a variety of stimuli.

Is the hippocampus a nucleus?

Its projecting pathways include the medial septal nucleus and supramammillary nucleus. The dorsal hippocampus also has more place cells than both the ventral and intermediate hippocampal regions. The intermediate hippocampus has overlapping characteristics with both the ventral and dorsal hippocampus.

What is Cornu Ammonis?

Filters. (paleontology, obsolete) A fossil shell, curved like a ram’s horn; an ammonite. noun. (anatomy, obsolete) The hippocampus of the brain.

What is the Hilus in hippocampus?

H, hilus; DG, dentate granule cell layer. An important link in humans connecting inflammatory signaling, early febrile seizures, and hippocampal sclerosis (with temporal lobe epilepsy) is suspected to be a specific polymorphism involving the interleukin-1β–511T allele.

What are three functions of the hippocampus?

The hippocampus is an essential part of the brain’s limbic system, a group of brain structures in the cerebral cortex responsible for behavioral and emotional responses. Hippocampal function plays a critical role in learning, emotional responses, and memory formation and storage.

What is the role of subiculum?

Functions of the Subiculum The subiculum is an integral part of the limbic memory system, responsible for memory retrieval (22) and spatial encoding (23–26). Similar to CA1 neurons, subicular neurons are place cells that respond when the animal is in a particular location in space.

What are DG neurons?

The dentate gyrus (DG) is part of the hippocampal formation in the temporal lobe of the brain, which also includes the hippocampus and the subiculum.

Where is the nucleus basalis of Meynert?

Intermediate magnification micrograph of the nucleus basalis. LFB-HE stain. The nucleus basalis, also known as the nucleus basalis of Meynert or nucleus basalis magnocellularis, is a group of neurons located mainly in the substantia innominata of the basal forebrain.

What is the nucleus basalis of the brain?

[edit on Wikidata] The nucleus basalis, also known as the nucleus basalis of Meynert or nucleus basalis magnocellularis, is a group of neurons located mainly in the substantia innominata of the basal forebrain.

What neurotransmitters are found in the nucleus basalis?

Most neurons of the nucleus basalis are rich in the neurotransmitter acetylcholine, and they have widespread projections to the neocortex and other brain structures. Nucleus basalis in relation to the globus pallidus (top of image). The nucleus basalis in humans is a somewhat diffuse collection of large cholinergic neurons in the basal forebrain.

Is the nucleus basalis continuous with the cholinergic neurons?

Rostrally, the nucleus basalis is continuous with the cholinergic neurons of the nucleus of the diagonal band of Broca. The nucleus basalis is thought to consist of several subdivisions based on the location of the cells and their projections to other brain regions.