SECRETORY VESICLE Meaning and
Definition
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A secretory vesicle is a small membrane-bound organelle found within a cell that acts as a storage compartment for various substances involved in secretion processes. These vesicles are primarily found in secretory cells, such as gland cells, neurons, and endocrine cells, where they play a crucial role in transporting and releasing essential molecules.
Secretory vesicles are formed through a process called vesicle budding, where regions of the cell membrane pinch off to form small sac-like structures containing the desired substances. These vesicles then migrate within the cell, either remaining in the cytoplasm or moving towards the plasma membrane.
The contents of secretory vesicles can vary, depending on the specific cell type and function. They can store and transport various molecules, such as hormones, neurotransmitters, enzymes, and other proteins required for secretion. These vesicles ensure that these substances remain isolated and protected until they are needed.
When the cell receives a signal or stimulus, such as a hormone signal or neuronal stimulation, the secretory vesicles undergo a process called exocytosis. During exocytosis, the vesicle fuses with the plasma membrane, releasing its contents into the extracellular space. This enables the substances to exert their effects on target cells or tissues.
The formation, transport, and release of secretory vesicles are tightly regulated processes that are crucial for maintaining cellular homeostasis and proper functioning of various organs and systems in the body.
Common Misspellings for SECRETORY VESICLE
- aecretory vesicle
- zecretory vesicle
- xecretory vesicle
- decretory vesicle
- eecretory vesicle
- wecretory vesicle
- swcretory vesicle
- sscretory vesicle
- sdcretory vesicle
- srcretory vesicle
- s4cretory vesicle
- s3cretory vesicle
- sexretory vesicle
- sevretory vesicle
- sefretory vesicle
- sedretory vesicle
- seceetory vesicle
- secdetory vesicle
- secfetory vesicle
- sectetory vesicle
Etymology of SECRETORY VESICLE
The term "secretory vesicle" is a combination of the words "secretory" and "vesicle".
The word "secretory" is derived from the Latin word "secretus", which means "hidden" or "separated". In biology, secretory refers to the process of producing and releasing substances, such as hormones, enzymes, or neurotransmitters, by a specific cell or tissue.
The word "vesicle" is derived from the Latin word "vesicula", which means "small bladder" or "little bag". In biology, vesicle refers to a small, fluid-filled sac or storage compartment within cells that can transport or store various substances.
Therefore, a "secretory vesicle" is a small sac or storage compartment within cells that is involved in the secretion of substances produced by the cell, which can then be released into the extracellular space or transported to their target locations.
