Epithelial Tissue Characteristics
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Questions and Answers

What is the characteristic of epithelial cells in terms of shape?

  • They have a spherical shape
  • They have a variable shape (squamous, cuboidal, columnar) (correct)
  • They have a fixed shape
  • They have a rectangular shape

What is the function of the basement membrane in epithelial tissue?

  • It forms a barrier between epithelial and connective tissue (correct)
  • It provides structural support to epithelial cells
  • It provides nutrients to epithelial cells
  • It regulates the growth of epithelial cells

Which of the following is a characteristic of simple epithelia?

  • They have multiple layers of cells
  • They show polarity with uneven distribution of organelles and membrane proteins (correct)
  • They are only found in the nervous system
  • They have a uniform distribution of organelles

What is the term for the region of the cell that contacts the connective tissue?

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

What is the term for the connective tissue that underlies the epithelia lining the organs of the digestive, respiratory, and urinary systems?

<p>Lamina propria (D)</p> Signup and view all the answers

Which of the following is NOT a characteristic of epithelial tissue?

<p>It contains blood vessels (B)</p> Signup and view all the answers

What is the function of cellular junctions in epithelial tissue?

<p>They adhere epithelial cells strongly to one another (B)</p> Signup and view all the answers

What is the function of papillae in epithelial tissue?

<p>To increase the area of contact between the epithelium and connective tissue (B)</p> Signup and view all the answers

What is the primary function of the epidermis?

<p>Protection of the underlying tissue (D)</p> Signup and view all the answers

What type of epithelial tissue is involved in secretion?

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

What is the origin of epithelial tissues?

<p>From all the embryonic layers (B)</p> Signup and view all the answers

What is the function of the basement membrane?

<p>To separate the epithelium from the underlying tissue (C)</p> Signup and view all the answers

What is the composition of the basement membrane proper?

<p>Glycoproteins and collagen material (D)</p> Signup and view all the answers

What is the cell coat composed of?

<p>Glycoproteins and glycolipids (C)</p> Signup and view all the answers

What is the name of the layer that is rich in reticular fibers?

<p>Connective tissue layer (D)</p> Signup and view all the answers

What is the primary function of glandular epithelium?

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

Exocrine glands are characterized by:

<p>Retaining their connection with the surface through ducts (B)</p> Signup and view all the answers

What type of glands secrete hormones directly into the blood capillaries?

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

What is the characteristic of merocrine glands?

<p>The secretion leaves the cell by exocytosis and the cell membrane is left intact (B)</p> Signup and view all the answers

What is the characteristic of holocrine glands?

<p>The cells become totally included in the secretion (D)</p> Signup and view all the answers

What type of gland is the pancreas?

<p>Mixed exocrine and endocrine gland (A)</p> Signup and view all the answers

What is the classification of glands based on the shape of the secretory part and the branching of ducts?

<p>Simple, simple branched, and compound (D)</p> Signup and view all the answers

What is the characteristic of apocrine glands?

<p>Loss of the apical part of the cell during secretion (B)</p> Signup and view all the answers

What is the characteristic of sebaceous glands?

<p>They are holocrine glands (A)</p> Signup and view all the answers

What is the classification of glands based on the number of cells?

<p>Unicellular and multicellular glands (C)</p> Signup and view all the answers

What is the function of sustentacular cells in neuroepithelium?

<p>To support neuroepithelial cells (D)</p> Signup and view all the answers

Which of the following is an example of a compound tubular gland?

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

What is the characteristic of serous glands?

<p>They secrete serous fluid containing water, albumin, and enzymes (A)</p> Signup and view all the answers

What is the function of the organ of Corti in the inner ear?

<p>To perceive hearing (C)</p> Signup and view all the answers

What is the characteristic of myoepithelial cells?

<p>They are modified to contract (D)</p> Signup and view all the answers

What is the main function of glandular epithelium?

<p>Secretion of substances (B)</p> Signup and view all the answers

Which type of gland retains its connection with the surface by having ducts?

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

What is the characteristic of merocrine glands?

<p>The secretion leaves the cell by exocytosis and the cell membrane is left intact (B)</p> Signup and view all the answers

Which gland is an example of a mixed exocrine and endocrine gland?

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

What is the term for glands that lose their connection with the surface?

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

Which type of gland is formed of only one cell?

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

What happens during the secretion of apocrine glands?

<p>There is loss of the apical part of the cell (C)</p> Signup and view all the answers

What type of glands are characterized by cells bursting and becoming totally included in the secretion?

<p>Holocrine glands (C)</p> Signup and view all the answers

What shapes can the secretory part of simple glands take?

<p>Straight tubular, coiled tubular, and acinar (B)</p> Signup and view all the answers

Which type of glands secrete serous fluid containing water, albumin, and enzymes?

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

What is the term for the type of epithelial cells that are modified to contract?

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

What is the function of the neuroepithelium?

<p>Perception of external stimuli (B)</p> Signup and view all the answers

Which type of glands have a secretory part that is branched and tubular?

<p>Simple branched glands (C)</p> Signup and view all the answers

What is the name of the glands that secrete mucin?

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

Which type of glands have a secretory part that is branched and tubulo-acinar?

<p>Compound tubulo-acinar glands (B)</p> Signup and view all the answers

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