Definitions for astrocyte
ˈæs trəˌsaɪtas·tro·cyte

Princeton's WordNetRate this definition:0.0 / 0 votes

1. astrocytenoun

   comparatively large neuroglial cell

GCIDERate this definition:0.0 / 0 votes

1. astrocytenoun

   a large star-shaped neuroglial cell in nervous tissue.

WiktionaryRate this definition:0.0 / 0 votes

1. astrocytenoun

   a neuroglial cell, in the shape of a star, in the brain

WikipediaRate this definition:0.0 / 0 votes

1. Astrocyte

   Astrocytes (from Ancient Greek ἄστρον, ástron, "star" + κύτος, kútos, "cavity", "cell"), also known collectively as astroglia, are characteristic star-shaped glial cells in the brain and spinal cord. They perform many functions, including biochemical control of endothelial cells that form the blood–brain barrier, provision of nutrients to the nervous tissue, maintenance of extracellular ion balance, regulation of cerebral blood flow, and a role in the repair and scarring process of the brain and spinal cord following infection and traumatic injuries. The proportion of astrocytes in the brain is not well defined; depending on the counting technique used, studies have found that the astrocyte proportion varies by region and ranges from 20% to 40% of all glia. Another study reports that astrocytes are the most numerous cell type in the brain. Astrocytes are the major source of cholesterol in the central nervous system. Apolipoprotein E transports cholesterol from astrocytes to neurons and other glial cells, regulating cell signaling in the brain. Astrocytes in humans are more than twenty times larger than in rodent brains, and make contact with more than ten times the number of synapses.Research since the mid-1990s has shown that astrocytes propagate intercellular Ca2+ waves over long distances in response to stimulation, and, similar to neurons, release transmitters (called gliotransmitters) in a Ca2+-dependent manner. Data suggest that astrocytes also signal to neurons through Ca2+-dependent release of glutamate. Such discoveries have made astrocytes an important area of research within the field of neuroscience.

ChatGPTRate this definition:0.0 / 0 votes

1. astrocyte

   An astrocyte is a type of glial cell, which are the most abundant cells in the human brain. They are star-shaped and are involved in many vital functions in the brain, including the provision of nutrients to neurons, maintenance of the blood-brain barrier, repair and scarring process of the brain and spinal cord following injuries. Their name comes from the Greek word for star ('astro') because of their star-like shape. In recent years, they have been found to play a crucial role in brain functions, such as in the synapse, neuronal health, regulation of blood flow, and in the local immune responses.

WikidataRate this definition:0.0 / 0 votes

1. Astrocyte

   Astrocytes, also known collectively as astroglia, are characteristic star-shaped glial cells in the brain and spinal cord. They are the most abundant cell of the human brain. They perform many functions, including biochemical support of endothelial cells that form the blood–brain barrier, provision of nutrients to the nervous tissue, maintenance of extracellular ion balance, and a role in the repair and scarring process of the brain and spinal cord following traumatic injuries. Research since the mid-1990s has shown that astrocytes propagate intercellular Ca2+ waves over long distances in response to stimulation, and, similar to neurons, release transmitters in a Ca2+-dependent manner. Data suggest that astrocytes also signal to neurons through Ca2+-dependent release of glutamate. Such discoveries have made astrocytes an important area of research within the field of neuroscience.

Matched Categories

1. • Neurogliacyte

How to pronounce astrocyte?

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Numerology

1. Chaldean Numerology

   The numerical value of astrocyte in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of astrocyte in Pythagorean Numerology is: 9

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=astrocyte
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=astrocyte
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Astrocyte
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Astrocyte
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=astrocyte