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Finale Jeopardy
Histology
| Question | Answer |
|---|---|
| What microscopy technique is performed on a patient tissue sample in an effort to identify autoantibodies with fluorescent probes | DIRECT IMMUNOfluorescence |
| A large nerve is cut in cross section. When looking at the cross section you see it has three distinct layers of connective tissue. What are these lakers called (list from peripheral to central) | Epineurium, perineurium, endoneurium |
| Actin and myosin filaments adhere to _____ ______ in smooth muscle cells | Dense Bodies |
| A duct has been cut in cross section. What type of epithelium is forming this structure? | simple cuboidal epithelium |
| Which connective tissue fiber type is found throughout lymph nodes | Reticular Fibers (Type III Cartilage) |
| One sarcomere is defined at the distance from _____ to ______ | Z disk to Z disk |
| Describe the number and distribution of nuclei in skeletal muscle cells | MANY nuclei, and on the periphery of muscle fiber |
| This cell type surrounds ducts and contracts to move secretary products through the duct system | myoepithelial cells |
| What two stains are used for routine staining of slides for light microscopy? Which stain is more predominant in the cytoplasm of the cell and why? | Hematoxylin and Eosin (H&E) Cytoplasm is EOSINOPHILIC (Pink) because eosin is an acidic dye that preferentially stains positively charged amino acid groups of the cytoplasm |
| A patient reports she has a history of a neoplasm called a thyroid follicular adenoma. This tumor secretes an excess of thyroid hormones T3 and T4 into the patient's circulation. Is this tumor benign or malignant? What type of gland is the thyroid? | Benign and thyroid is endocrine gland. |
| Which muscle type has intercalated disks and what type(s) of junctions are present within these intercalated disks | Cardiac Muscle Transverse Regions have desmosomes, fascia adherens Longitudinal regions have gap junctions |
| Which muscle cell type is best described as a static population | Cardiac Muscle |
| Name the 4 types of tongue papillae | Filiform, Fungiform, Circumvallate, and Foliate |
| Which type of tongue papilla does NOT have taste buds | Filiform Pappilae |
| A piece of a small peripheral “nerve” is accidentally removed when you biopsy a patient's lip. Which component of the neuron(s) would you expect to see under the microscope? | axons |
| What is the main function of brown fat | Heat Production (thermogenesis) |
| Ganglia are composed of | Neuronal cell bodies of the PNS |
| Which dental structures are harder (have a higher percent of hydroxyapatite) than bone | enamel, dentin, and cementum |
| Name all the junctions of the “junctional complex” | Tight junctions (zonula occludens, occluding junctions) Zonula adherens, adherens junctions Desmosomes, spot junctions, macula adherens Gap junctions Hemidesmosomes, anchoring junctions |
| T/F contractile myofilaments actin and myosin are found only in muscle cells | FALSE |
| What is the main function of white fat | Storage (metabolic energy storage) |
| _______ _______ is a microscopic diagnosis which means there is a premalignant change of the epithelium in the oral cavity | epithelial dysplasia |
| By what mechanism does sensodyne attempt to relieve tooth sensitivity | blocking exposed dentinal tubules |
| This type of neuron has a single extension from the perikaryon | pseudounipolar neurons |
| What type of fat is found in large amounts in newborns | Brown (multilocular) fat |
| These two muscle types have striations | Cardiac and skeletal |
| This apical specialization enhances absorptive quality of epithelium | microvilli |
| Which type of fat comprises at least 10% of a healthy adult’s body weight | white (unilocular) fat |
| These cells create the myelin sheath on nerve axons | Schwann Cells |
| What is the most ABUNDANT dental tissue | Dentin |
| Using your knowledge of prefixes and suffixes what is the name of a benign neoplasm composed of the cells that myelinate our neuronal axons | Schwannoma |
Created by:
toothfairymeg
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