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Chapter 4
Body Tissues 4.1-4.5
Term | Definition |
---|---|
Tissues | A group of specialized cells that perform a common function in the body. |
Epithelial Tissue | Tightly packed cells that form the surface of the body as well as body organs. Such as the skin. |
Connective Tissues | Binds body parts together to provide support, protection, produce blood cells, and store fats. Cartilage and bone are examples. |
Muscular Tissues | Allow to body to move. |
Nervous Tissues | Responds to stimuli and transmits signals throughout the body. |
Simple Epithelium | One single layer of cells. |
Stratified Epithelium | Composed of two or more layers of cells. |
Squamous | Flattened cells. |
Cuboidal | A cube shaped cell. |
Columnar | An elongated cell that is rectangular in shape. |
Pseudostratified Columnar | "Falsely layered" cells, these cells appear to be composed of multiple layers but are not. |
Transitional Epithelial Cells | Cell tissue that have the ability to change shape. |
Collagen | A type of connective tissue matrix that give flexibility and strength. |
Elastic Fibers | A matrix substance that give connective tissues the ability to stretch. |
Reticular Fibers | A connective tissue matrix substance that creates supportive networks (Adds strength) |
Skeletal Muscle | An voluntary muscle fiber that is striated and cylindrical in shape. These muscle attach to the skin and bones. |
Smooth Muscle | An involuntary muscle fiber found in hollow organs such as the stomach. These muscle are non-striated and have a spindle shape. |
Cardiac Muscle | An involuntary muscle fiber only found in the heart. These fibers are striated, have a cylindrical shape, and have unique branches. |
Neuron | The cells that conduct nerve signals throughout the body. |
Neuroglia | Cells that support and nourish neurons. |
Myelin | A fatty covering that speeds up how fast a nerve can transmit a signal. |