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10 Cards in this Set
- Front
- Back
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Tissues
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Layers or groups of cells with a common function.
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Intercellular Junctions
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Tightly packed cell types have these to connect their cell membranes together.
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Tight Junctions
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Membranes of adjacent cells merge and fuse. Located in the small intestine.
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Desmosome
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Rivets or "weld-spots" skin cells together, such as in the outer skin layer
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Gap Junctions
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Tubular channels link the cytoplasm of adjacent cells, such as in the heart.
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Four Types of Human Body Tissue
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1. Epithelial
2. Connective 3. Muscle 4. Nervous |
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Simple Squamous Epithelium
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Single layer of thin, flat cells. Look similar to floor tiles with nuclei broad and thin. Lines delicate areas such as alveoli, lungs, capillaries and blood vessels.
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Simple Cuboidal Epithelium
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Single layer of cube-shaped cells. They have a centrally located spherical nuclei. They line the ovaries, certain glands, pancreas and liver.
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Simple Columnar Epithelium
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A single layer of elongated cells whose nuclei are usually the same level. May or may not have cilia. Lines the uterus and digestive tract. Secrets digestive fluids and absorbs nutrients
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Pseudostratified Columnar Epithelium
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Looks stratified or layered, but they are not layered. This effect is caused by the nuclei are in rows. They commonly have cilia, mucus and goblet cells. Line the respiratory system.
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