IndietroStudy Guide: Tissues 1/3
Termini in questo insieme (22)
Tissue is a group of similar cells that perform a common function in the body.
Histology is the study of tissues and their structure under the microscope.
Epithelial tissue covers body surfaces and lines cavities, providing protection and selective absorption.
Connective tissue supports, binds, and protects other tissues and organs in the body.
Muscle tissue is responsible for movement through contraction.
Nervous tissue transmits electrical signals to coordinate body functions.
The extracellular matrix is the non-cellular component in tissues providing structural and biochemical support to cells.
Collagen is a strong, fibrous protein that provides tensile strength to connective tissues.
Elastin is a protein that allows tissues to stretch and recoil like elastic.
Collagen fibers are bundles of collagen protein that provide strength and support in connective tissue.
Elastic fibers are composed of elastin and allow tissues to stretch and return to shape.
Reticular fibers form a fine network supporting soft tissues like organs and blood vessels.
Ground substance is the gel-like material in the extracellular matrix that fills space between cells and fibers.
Proteoglycans are molecules in ground substance that trap water and provide cushioning in tissues.
Glycoproteins are proteins with carbohydrate chains that help cells adhere to the extracellular matrix.
Glycosaminoglycans are long polysaccharide chains that attract water and contribute to the viscosity of ground substance.
Cell adhesion molecules are proteins on cell surfaces that help cells stick to each other and the extracellular matrix.
Intercellular junctions are specialized connections between cells that maintain tissue structure and communication.
Tight junctions seal cells together to prevent leakage of substances between them.
Gap junctions allow direct communication between adjacent cells through channels for ions and small molecules.
Desmosomes are strong adhesive junctions that anchor cells together, providing mechanical stability.
Avascular describes tissues that lack blood vessels, relying on diffusion for nutrient and waste exchange.