ZOO 115 B Lecture 2: Epithelial Tissues Mary Grace B.Dacuma, Ph.D.
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Questions and Answers

What is the primary function of epithelial tissues?

  • To provide protection
  • To form secretory portions and ducts of glands
  • To act as receptors for special senses
  • All of the above (correct)

    • Which type of epithelial tissue is characterized by cells that are taller than they are wide, with an ovoid nucleus near the base of the cell?

  • Cuboidal epithelium
  • Squamous epithelium
  • Columnar epithelium (correct)
  • Transitional epithelium

    • Which type of epithelial tissue has a single layer of cells, where all the cells are attached to the basement membrane?

  • Simple epithelium (correct)
  • Pseudostratified epithelium
  • Stratified epithelium
  • Transitional epithelium

    • Which type of epithelial tissue has several layers of cells, with the innermost layer being attached to the basement membrane?

    <p>Stratified epithelium</p> Signup and view all the answers

    Which type of epithelial tissue has cells that change shape at each layer, with the innermost layer being attached to the basement membrane?

    <p>Transitional epithelium</p> Signup and view all the answers

    Which type of epithelial tissue has a single layer of cells, but the cells are of varying heights, with all cells still attached to the basement membrane?

    <p>Pseudostratified epithelium</p> Signup and view all the answers

    Which type of simple epithelium is found lining the follicles of the thyroid gland and the surface of the ovary?

    <p>Simple cuboidal epithelium</p> Signup and view all the answers

    Which type of simple epithelium is found lining the stomach, small intestine, and large intestine?

    <p>Simple columnar epithelium</p> Signup and view all the answers

    Which type of simple epithelium has a single layer of ciliated columnar cells?

    <p>Ciliated simple columnar epithelium</p> Signup and view all the answers

    Which type of simple epithelium is found lining the trachea, primary bronchi, and auditory tube?

    <p>Ciliated pseudostratified columnar epithelium</p> Signup and view all the answers

    What is the distinguishing feature of ciliated pseudostratified columnar epithelium?

    <p>It has a single layer of columnar cells of varying heights, with cilia on the tallest cells.</p> Signup and view all the answers

    Which type of simple epithelium is found lining the oviduct, uterus, primary bronchi, paranasal sinuses, and central canal of the spinal cord?

    <p>Ciliated simple columnar epithelium</p> Signup and view all the answers

    Which embryonic germ layer gives rise to the epithelial lining of the gastrointestinal tract and associated organs like the pancreas and liver?

    <p>Endoderm</p> Signup and view all the answers

    Which component of an epithelial tissue provides structural support and anchors the epithelial cells?

    <p>Basement membrane</p> Signup and view all the answers

    Which of the following is the functional component of an animal tissue?

    <p>Parenchyma</p> Signup and view all the answers

    Which surface of an epithelial cell is exposed to the external environment or cavity?

    <p>Apical surface</p> Signup and view all the answers

    Which of the following epithelial tissues is derived from the mesoderm germ layer?

    <p>Endothelium lining blood vessels</p> Signup and view all the answers

    Which of the following structures is NOT a part of an epithelial tissue?

    <p>Parenchyma</p> Signup and view all the answers

    Which type of epithelium is found lining the penile urethra and excretory duct of the parotid gland?

    <p>Pseudostratified columnar epithelium</p> Signup and view all the answers

    In a non-keratinized stratified squamous epithelium, what is the characteristic of the apical cells?

    <p>They retain individual nuclei and metabolic functions</p> Signup and view all the answers

    Where is the keratinized stratified squamous epithelium found?

    <p>On the body surface (epidermis)</p> Signup and view all the answers

    What is the characteristic of the component cells in a stratified squamous epithelium?

    <p>They vary in shape from base to surface</p> Signup and view all the answers

    Which type of epithelium is found lining the oral cavity, epiglottis, esophagus, vagina, and urethra?

    <p>Non-keratinized stratified squamous epithelium</p> Signup and view all the answers

    Which of the following is not a type of stratified epithelium mentioned in the text?

    <p>Stratified pseudostratified epithelium</p> Signup and view all the answers

    Which type of epithelium is found in the urinary bladder?

    <p>Transitional epithelium</p> Signup and view all the answers

    In which of the following locations would you find stratified columnar epithelium?

    <p>Fornix of conjunctiva and pharynx</p> Signup and view all the answers

    Which statement about stratified cuboidal epithelium is correct?

    <p>It is a rare type of epithelium found in excretory ducts of large salivary glands, sweat glands, and pancreas.</p> Signup and view all the answers

    Which of the following statements about the structure of transitional epithelium is correct?

    <p>The basal cells appear cuboidal or low columnar, while the apical cells are larger and dome-shaped.</p> Signup and view all the answers

    Which type of epithelium would you expect to find in the largest ducts of salivary glands?

    <p>Stratified columnar epithelium</p> Signup and view all the answers

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