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10 Cards in this Set
- Front
- Back
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List the 4 main tissue types. |
1. Epithelial 2. Connective 3. Muscle 4. Nervous |
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List the general characteristics of epithelial tissue. |
1. Polarity 2. Cellularity 3. Specialized Contacts 4. Supported by connective tissue 5. Avascular 6. Regeneration |
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List the 2 parts of the basement membrane. |
1. Basal Lamina 2. Reticular Lamina |
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Describe how epithelial tissues are named. |
1. Shapes -Squamous: flat and scale-like -Cuboidal: height=width=depth -Columnar: taller than wide 2. Number of Layers -Simple: one cell layer thick -Stratified: 2 or more cell layers thick -Pseudostratified: all cells contact basement membrane, but tissue appears stratified -Transitional: specialized for stretching |
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Simple Squamous Epithelial Tissue |
Locations: mesothelia (serosae), endothelia (lining of blood vessels, heart, lymphatic vessels), lung aveoli (air sacs), lining Bowman's capsule and loop of Henle in kidney Functions: diffusion, filtration, secretion |
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Simple Cuboidal Epithelial Tissue |
Locations: lines tubules of kidney, glands, ducts Functions: absorption, secretion |
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Simple Columnar Epithelial Tissue |
Locations: Non-ciliated: lining digestive tract (stomach to rectum), gall bladder; Ciliated: lining small bronchi, uterine (fallopian) tubes, and some regions of the uterus -May contain unicellular glands called goblet cells-produce mucus -May contain cilia that propel mucus Functions: absorption, secretion |
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Pseudostratified Columnar Epithelial Tissue |
Locations: Non-Ciliated: lines sperm-carrying ducts and ducts of large glands; Ciliated: lines trachea and most of upper respiratory tract -May contain unicellular glands called goblet cells-produce mucus -May contain cilia that propel mucus Functions: Secretion |
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Stratified Squamous Epithelial Tissue |
Locations: Dry Surfaces(skin epidermis): Keratinized SSET contains dead surface cells filled with protein keratin that helps to form a barrier to water, microbes, and abrasion; Moist Surfaces (oral cavity, esophagus, vagina, anus): Non-keratinized SSET contains surface cells are living and in areas where there is less abrasion Function: Protection |
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Transitional Epithelial Tissue |
Locations: lines ureters, bladder and part of urethra Functions: distension, expansion, stretching *when stretched: appear squamous *not stretched: appear scalloped, dome-shaped, and many layers |
