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Questions and Answers

What is the shape of the cells that compose simple squamous epithelium?

  • Columnar
  • Star-shaped
  • Flat and elongated (correct)
  • Cuboidal

    • Where can simple squamous epithelium be found in the lungs? (Select all that apply)

  • Alveolar ducts (correct)
  • Alveolar walls (correct)
  • Bronchi
  • Trachea

    • What is the term for simple squamous epithelium that lines the inner lining of blood vessels?

  • Epithelioid
  • Mesothelium
  • Endothelium (correct)
  • Mesenchyme

    • Where can simple squamous epithelium be found in the body cavities?

    <p>Serous membranes (C)</p> Signup and view all the answers

    What is the location of the nucleus in simple squamous epithelium cells?

    <p>Centrally located (D)</p> Signup and view all the answers

    What type of cells are noted per the arrows? Bonus: What type of epithelium is this?

    <p>Simple squamous epithelium. This is vascular endothelium</p> Signup and view all the answers

    What is distinctive about the shape of cuboidal epithelial cells?

    <p>All sides are approximately the same size (A)</p> Signup and view all the answers

    Where can cuboidal epithelium be found in the brain?

    <p>Choroid plexus (A)</p> Signup and view all the answers

    What is the function of cuboidal epithelium in the thyroid gland?

    <p>To line follicles (C)</p> Signup and view all the answers

    What is unique about the structure of the lens of the eye?

    <p>It is lined with cuboidal epithelium (B)</p> Signup and view all the answers

    What is the primary function of glands that are lined with cuboidal epithelium?

    <p>To secrete substances (C)</p> Signup and view all the answers

    The collecting tubule in the kidney (as shown in histology above) is lined by simple cuboidal epithelium.

    <p>True (A)</p> Signup and view all the answers

    This histology represents the lining of the ___________ with simple columnar ciliated epithelium.

    <p>Oviduct (A)</p> Signup and view all the answers

    What type of cells are noted in the histology above?

    <p>Keratinized stratified squamous epithelium (D)</p> Signup and view all the answers

    Match to the appropriate description of the adenomere and/or duct.

    <p>Tubular = Straight or coiled Acinar = Pie shaped, small lumen Alveolar = Large luminal space Compound duct = Many branches of a duct system</p> Signup and view all the answers

    Match to the correct adenomere and/or duct.

    <p>Sweat gland, stomach glands, colon glands = Tubular Pancreas, salivary glands = Acinar Mammary gland, prostate, sebaceous glands = Alveolar One opening = Simple duct</p> Signup and view all the answers

    Which of the following best describes letter B?

    <p>Simple branched tubular (D)</p> Signup and view all the answers

    Match the following to the correct shape of duct and adenomere.

    <p>A = Simple tubular F = Compound tubular C = Simple coiled tubular E = Simple branched acinar</p> Signup and view all the answers

    What is the shape of the duct and adenomere of letter G?

    <p>Compound acinar (C)</p> Signup and view all the answers

    Which of the following is describing the shape of the duct and adenomere for letter D?

    <p>Simple acinar (B)</p> Signup and view all the answers

    Which of the following is describing the shape of duct and adenomere for letter H?

    <p>Compound tubuloacinar (A)</p> Signup and view all the answers

    This histology is displaying a simple cuboidal straight tubular gland.

    <p>False (B)</p> Signup and view all the answers

    Mucous and serous cells together make a mixed gland, but the mucous and serous cells do not share a common duct system.

    <p>False (B)</p> Signup and view all the answers

    What type of gland is noted in the histology above?

    <p>Mucous gland (A)</p> Signup and view all the answers

    The sebaceous gland’s cytoplasm is pale and foamy with a centrally located nucleus, whereas a mucous gland has a basally located nucleus with its cytoplasm appearing pale and frothy.

    <p>True (A)</p> Signup and view all the answers

    Pair the correct classification of modes of secretion.

    <p>Endocrine = Secreted product is directed toward the blood vessels Merocrine = Smooth lumen, no cytoplasm lost producing secretion Holocrine = Entire cell is the product Apocrine = Apex bulges,some cytoplasm is lost producing secretion</p> Signup and view all the answers

    Merocrine, apocrine and holocrine are all methods of exocrine secretion.

    <p>True (A)</p> Signup and view all the answers

    Match to correct examples of modes of secretion.

    <p>Merocrine = Salivary glands Apocrine = Prostate gland Merocrine = Exocrine pancreas Apocrine = Mammary gland</p> Signup and view all the answers

    Sebaceous glands are an example of a holocrine method.

    <p>True (A)</p> Signup and view all the answers

    What type of cell is this?

    <p>Mast cell (D)</p> Signup and view all the answers

    Which of the following correctly describes the content of this histology slide.

    <p>The yellow arrows are pointing to collagen fibers and the black arrows are pointing to fibrocyte nuclei (A)</p> Signup and view all the answers

    Match the following main collagen types to correct description

    <p>Type 1 = 90% of body’s collagen, found in skin, bone, dentin, tendons, fibrocartilage; resist tensile forces Type 2 = Found in cartilage; resist compression Type 3 = Reticular fibers found in the stroma of expandable organs- spleen, lymph node, liver, cardiovascular system, lymphatics Type 4 = Basal lamina of epithelia</p> Signup and view all the answers

    Dense irregular CT is characterized by more cells, few fibers, and a clear space; whereas loose CT is characterized by fewer cells, many thick collagen fibers, and are irregularly packed.

    <p>False (B)</p> Signup and view all the answers

    Match the following to correct description of identified structures.

    <p>Blue = Loose CT Black = Stratified squamous keratinized epithelium Red = Dense CT Free bee = Free bee</p> Signup and view all the answers

    Match the following to correct tissue being identified with the arrows

    <p>Black = Stratified squamous keratinized epithelium Red = Dense irregular CT Blue = Loose CT Freebee = Freebee</p> Signup and view all the answers

    Dense regular connective tissue is characterized parallel arranged collagenous fibers

    <p>True (A)</p> Signup and view all the answers

    Reticular fibers are being displayed in the histology

    <p>True (A)</p> Signup and view all the answers

    What is being displayed in the histology slide?

    <p>A lung capillary</p> Signup and view all the answers

    Match the following to the correct numbered boxes

    <p>1 = Intra-alveolar macrophage 2 = Type 1 cell 3 = Type 2 cell (surfactant) 4 = Endothelium</p> Signup and view all the answers

    Choose the statement that describes this histology slide, respectively.

    <p>1 is identifying a Type 2 alveolar cell and 2 is identifying a Type 1 cell (B)</p> Signup and view all the answers

    Type 2 pneumonocytes squamous alveolar cells whereas Type 1 pneumonocytes are known as granular alveolar type 1 cells

    <p>False (B)</p> Signup and view all the answers

    Study Notes

    Simple Squamous Epithelium

    • Composed of flat, elongated cells with a round to oval nucleus, often centrally located.

    Locations

    • Lines body cavities, known as mesothelium, including: • Pleural cavity • Pericardial cavity • Peritoneal cavity
    • Found in alveolar walls in lungs
    • Forms the inner lining of: • Blood vessels • Lymphatic vessels, known as endothelium

    Simple Cuboidal Epithelium

    • Cells have a cuboidal shape, with all sides being approximately the same size.
    • Cell limits are often well-defined.
    • Found in lining ducts of many glands.
    • Present in the choroid plexus in the brain.
    • Lines follicles of the thyroid gland.
    • Found in the lens of the eye.

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    Identify the characteristics and locations of cells throughout the body.

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