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Histology Quiz
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| Question | Answer |
|---|---|
| Biopsy | Remove Tissue to Diagnose |
| Autopsy | Exam dead person's organ to see cause of death |
| Embryonic Tissue's 3 Germ Layers | Endoderm, Mesoderm, Ectoderm |
| Endoderm | Inner germ layer that lines digestive tract |
| Mesoderm | Middle germ layer that forms muscle, bone, and blood vessels |
| Epithelium | Covers body, forms glands |
| 3 Epithelial Surfaces | free, basal, and lateral |
| Basal | Connected to basement membrane |
| Lateral | Side surface of cells and organs |
| Free | Not connected to anything |
| Avascular | Without blood vessels |
| Mitosis | Replication of cell |
| Basement Membrane | Formed by secretions of both epithelium and connective tissues. Acts as filter and "glue." Absorbs oxygen and secretes waste. |
| Types of epithelium based on # of layers | Simple, stratified, and pseudo-stratified |
| Simple | One layer, filters blood, toward surface like skin |
| Stratified | More than 1 layer of cell. Protective layer. |
| Pseudo-stratified | 1 simple layer, but each cell is long and weird |
| Cuboidal | cube shaped cells |
| Columnar | Column shaped cells |
| Squamous | Flat and scaley |
| Epithelium type based on shape | Cuboidal, columnar, squamous |
| Microvilli | Increase surface area of absorption or secretion |
| Cilia | Moves material across cell surface |
| Transitional Epithelium | lines bladder and ureters, allowing expansion |
| Goblet Cell | Columnar and produces mucus |