What is CA1?
What is CA1?
Within the hippocampal memory system, CA1 neurons are critically involved the formation, consolidation, and retrieval of hippocampal-dependant memories.
What does CA3 stand for?
CA3
| Acronym | Definition |
|---|---|
| CA3 | Carbonic Anhydrase 3 (gene) |
What is the function of area CA1?
CA1 is closer to the output region of the hippocampus and it is important for representing space in the environment, so that individual cells in the CA1 region encode for space and therefore long-term memory for space and attentional modulation of space importantly involves the CA1 region.
What is the 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 does the CA3 hippocampus do?
The CA3 region has attracted major attention in recent years for its specific role in memory processes, susceptibility to seizures and neuro-degeneration. This circuit is implicated in encoding spatial representations (O’Keefe and Nadel, 1978) and episodic memories (Scoville and Milner, 1957).
What are CA3 neurons?
CA3 pyramidal cell axons form an associative network associated with sharp waves and other EEG oscillations as well as epileptiform synchrony. Paired records from CA3 pyramidal cells and interneurons have provided data on synaptic contacts and efficacy within recurrent circuits.
What is the difference between CA1 CA2 CA3 and CA1?
Like CA3, it receives input from EC along the PP (some authors call this TA not PP input). Unlike CA3, it contains very few recurrent connections. In the rat, CA1 contains approximately 250,000 pyramidal cells (Wikipedia). 2. CA2 subfield.
Where does CA3 get its input from?
CA3 receives input from the mossy fibers of the granule cells in the dentate gyrus, and also from cells in the entorhinal cortex via the perforant path. The mossy fiber pathway ends in the stratum lucidum. The perforant path passes through the stratum lacunosum and ends in the stratum moleculare.
Where is Ca2 located in the brain?
CA2 is a small region located between CA1 and CA3. It receives some input from layer II of the entorhinal cortex via the perforant path. Its pyramidal cells are more like those in CA3 than those in CA1. It is often ignored due to its small size.
What is the function of CA4?
CA4 is often called the hilus or hilar region if considered as a part of the dentate gyrus. Unlike the pyramidal neurons in CA1 and CA3, the neurons here include mossy cells that primarily receive inputs from the granule cells in the dentate gyrus in the form of mossy fibers.
