Tissue is a group of cells that work together to perform a specific function in the body. Tissues can be found in animals and plants and are organized into different types such as muscle tissue, nerve tissue, and connective tissue.
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Google Gemini AI
2 hours ago
Tissue
A tissue is a group of structurally and functionally similar cells that work together to perform a specific task. In multicellular organisms, tissues make up organs and organ systems.
Characteristics of Tissues:
- Cellular Composition: Composed of one or more cell types with similar structure and function. - Basement Membrane: A thin layer of extracellular matrix that connects tissues to underlying structures. - Ground Substance: A matrix of extracellular material that fills the spaces between cells. - Intercellular Junctions: Structures that connect cells to each other and maintain tissue integrity. - Vascularization: May or may not contain blood vessels, which supply nutrients and remove waste products. - Innervation: May or may not contain nerves, which transmit information and control tissue function.
Types of Tissues:
- Epithelial Tissue: Forms the lining of organs, body cavities, and glands. - Connective Tissue: Provides support, storage, and protection. - Muscle Tissue: Responsible for movement and contraction. - Nervous Tissue: Transmits information through electrical and chemical signals.