CORTICAL VESICLE Meaning and
Definition
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A cortical vesicle, also known as a secretory vesicle or a granule, is a small membrane-bound organelle found within the cytoplasm of cells, particularly in animals and plants. It is formed by the Golgi apparatus and functions as a storage compartment for various molecules, such as neurotransmitters, hormones, enzymes, and proteins.
The term "cortical" refers to the vesicle's location near the cell membrane, specifically in the cortical region, which is the outermost layer of the cytoplasm. This strategic positioning allows the vesicle to rapidly release its contents into the extracellular space when stimulated by a specific signaling event.
Cortical vesicles play a crucial role in the process of exocytosis, which is the controlled release of these stored molecules outside the cell. Upon receiving a signal, the vesicle undergoes a process known as exocytosis, where it fuses with the plasma membrane, allowing the molecules stored within it to be released into the surrounding environment.
In different cell types, cortical vesicles have specific functions. For instance, in neurons, cortical vesicles contain neurotransmitters, which are involved in transmitting signals between neurons. In endocrine cells, they store and release hormones that regulate various physiological processes throughout the body. In plants, cortical vesicles help in cell wall formation during cell division and play a role in the release of defense compounds against pathogens.
Overall, cortical vesicles are vital cellular components involved in the controlled and regulated release of important molecules that contribute to various physiological and cellular processes.
Common Misspellings for CORTICAL VESICLE
- xortical vesicle
- vortical vesicle
- fortical vesicle
- dortical vesicle
- cirtical vesicle
- ckrtical vesicle
- clrtical vesicle
- cprtical vesicle
- c0rtical vesicle
- c9rtical vesicle
- coetical vesicle
- codtical vesicle
- coftical vesicle
- cottical vesicle
- co5tical vesicle
- co4tical vesicle
- corrical vesicle
- corfical vesicle
- corgical vesicle
- coryical vesicle
Etymology of CORTICAL VESICLE
The etymology of the word "cortical vesicle" can be broken down into its two components: "cortical" and "vesicle".
1. "Cortical": The term "cortical" is derived from the Latin word "cortex", meaning "bark" or "outer layer". In anatomy and biology, "cortical" refers to the outer layer of an organ or tissue, particularly the cerebral cortex, which is the outer layer of the brain that is responsible for higher cognitive functions. In the context of "cortical vesicle", "cortical" refers to the outer layer of cells or tissues.
2. "Vesicle": The word "vesicle" is derived from the Latin word "vesicula", which means "small bladder" or "small sac".
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