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Anatomy 6: Histology
Types of Tissues and facts about tissues
| Question | Answer |
|---|---|
| Tissue: | Collection of cells |
| Biopsy and its purpose: | Tissue sample, purpose is to look for an insult to tissue |
| Cellular Adaptation: | Increase or decrease in cell numbers |
| Hyperplasia: | Increase in NUMBER of cells |
| Does hyperplasia imply a tumor? | It may, but not in all cases |
| Hypertrophy: | Cell adaptation that leads to an INCREASE IN SIZE |
| Dysplasia: | Change in shape of cell |
| Metaplasia: | Cell adaptation to chronic insult |
| Ex of metaplasia: And what's the BODY's adaptation to it? | Smokers losing cilia on resp. tract, so they cough to clear resp throat |
| Where is the epithilum always located? | Above connective tissue |
| Atrophy: | REDUCTION in NUMBER of cells |
| What is the basement membrane? | Made of connective tissue and basal surface |
| Basal Surface: | Bottom part of epithilium, holds basement membrane |
| how is simple epithilium used? | Allows for diffisuion, not as many cells packed together |
| Stratified epithilium: | Contains a barrier to protect itself against foreign stuff |
| What is a primary example of stratified epithilium? | Skin |
| Intercellular matrix: | space b/w cells in epithlium |
| What is the relationship between the Intercell matrix and the number of cells? | As cells increase, ICM decreases |
| What is the apicol surface? | Cilia and microvili, front surface |
| Cell Junction: | How epithilium connect by sharing of plasma membrane |
| Example of Pseudo stratified: | Esophogous lined by these tissue types |
| What allows aions to connect? | Gap junctions |
| How does one ID epithilium? | Single or multiple layer, cell shape |
| What are the possible cell shapes? | Squamous, cuboid, colomner (like column) |
| Transitional epithilium: | In urinary organs, so when bladder is full, it looks like squomous cells, but when it is emplty, apocal, inflated cells |
| Apical: | Faces outside or tube |
| Glanduler epithilium: | Will manufacture something; DO NOT COVER |
| Example of glandular epithilium: | Hormone |
| How does this something get out of the cell? | Two ways, exocrine or endocrine |
| Exocrine: | duct out |
| Endocrine: | Out through blood |
| Connective tissue: | Cells suspended in a matrix |
| Matrix: | made of ground substance and fibers |
| What are teh three types of fibers? | Riticular, elastic, cologen |
| Cologen: | Protein fiber |
| Reticular: | net-like |
| What are the five types of connective tissue? | Loose, dense, cartilidge, bone, blood |
| Loose: | Random fiber arrangment |
| Fiberblast: | produces ground substance and fiber cells |
| How is swelling caused? | Fluid increase |
| redness caused? | blood increase |
| What is another word for loose tissue? | aeroortal |
| What are the two types of dense tissue? | Regular dense, irregular dense |
| Example of irregular dense: | connective tissue on which skin lies |
| Cartilidge: | Chondrocytes, suspend in a gell like matrix |
| Bone: | Osteocyted: Syspend in a rigid, hard matrix like fibers and mineral salts |
| Blood: | Red and white blood cells: suspend in plasma |
Created by:
talkglitter2486
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