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Learn about the four types of animal tissues: epithelial, connective, muscular and nervous. Find out their characteristics, classification, functions and examples with diagrams and quizzes.
- 19 min
Jun 16, 2020 · Learn about the four primary types of animal tissues: epithelial, connective, muscle, and nervous. Compare the shapes, functions, and locations of different epithelial cells and tissues in the body.
- Epithelial. Epithelial tissue is made of closely-packed cells arranged in flat sheets. Epithelia form the surface of the skin, line the various cavities and tubes of the body, and cover the internal organs.
- Muscle. Three kinds of muscle are found in vertebrates. Skeletal muscle is made of long fibers whose contraction provides the force of locomotion and other voluntary body movements.
- Connective. The cells of connective tissue are embedded in a great amount of extracellular material. This matrix is secreted by the cells. It consists of protein fibers embedded in an amorphous mixture of protein-polysaccharide ("proteoglycan") molecules.
- Adipose Tissue. Adipose tissue is "fat". There are two kinds found in mammals: white adipose tissue (WAT) and brown adipose tissue (BAT). The WAT in which the cells, called adipocytes, have become almost filled with oil, which is confined within a single membrane-enclosed droplet.
Sep 18, 2024 · Learn about the four main types of animal tissues: epithelial, connective, muscle, and nerve. Explore their structures, functions, classifications, and examples with vivid illustrations and explanations.
- Charles Molnar, Jane Gair
- 2015
- Cuboidal Epithelia. Cuboidal epithelial cells, shown in Figure 14.8, are cube-shaped with a single, central nucleus. They are most commonly found in a single layer representing a simple epithelia in glandular tissues throughout the body where they prepare and secrete glandular material.
- Columnar Epithelia. Columnar epithelial cells are taller than they are wide: they resemble a stack of columns in an epithelial layer, and are most commonly found in a single-layer arrangement.
- Transitional Epithelia. Transitional or uroepithelial cells appear only in the urinary system, primarily in the bladder and ureter. These cells are arranged in a stratified layer, but they have the capability of appearing to pile up on top of each other in a relaxed, empty bladder, as illustrated in Figure 14.11.
- Loose/Areolar Connective Tissue. Loose connective tissue, also called areolar connective tissue, has a sampling of all of the components of a connective tissue.
Learn about the different types and functions of tissues in plants and animals, from cells to organs. Compare and contrast the structure and properties of epidermis, ground tissue, vascular tissue, meristematic tissue, and permanent tissue in plants.
This video looks at the 4 main tissue types in animals and covers there various examples. We take a look at their structure and how to identify the different...
- 29 min
- 181.2K
- Miss Angler
