Connective Tissue Overview

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Questions and Answers

What is the main characteristic that defines connective tissue?

  • Few cells loosely embedded in a complex extracellular matrix (correct)
  • High cellular density and little intercellular matrix
  • Lack of vascularization and innervation
  • Cells with polarity and a simple extracellular matrix

What is the embryonic origin of connective tissue?

  • Ectoderm
  • Endoderm
  • Mesoderm (correct)
  • All of the above

What is the function of connective tissue in providing physical support to the body?

  • Through bone tissue (correct)
  • Through its role in thermoregulation
  • Through its role in nutrition and storage
  • Through its role in defense mechanisms

What type of tumors arise from connective tissue?

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

What is the name of the complex extracellular matrix found in connective tissue?

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

What is the function of mast cells in the body?

<p>To trigger symptoms of allergy through histamine release (C)</p> Signup and view all the answers

What is the composition of collagen fibers?

<p>Fibrils arranged in bundles of indefinite length (A)</p> Signup and view all the answers

What is the approximate percentage of collagen in the human body?

<p>30% of its dry weight (D)</p> Signup and view all the answers

What is the function of vitamin C in collagen synthesis?

<p>As a cofactor in collagen synthesis (B)</p> Signup and view all the answers

What is the characteristic of collagen fibers in terms of elasticity?

<p>They can stretch up to 5% of their initial length (C)</p> Signup and view all the answers

What is the cell responsible for collagen synthesis?

<p>All of the above (D)</p> Signup and view all the answers

What is the main function of fibroblasts in connective tissue?

<p>To synthesize fibers of the connective tissue (D)</p> Signup and view all the answers

What type of collagen fibers do reticular cells synthesize?

<p>Fine collagen fibers (A)</p> Signup and view all the answers

What is the name of the macrophages found in the liver?

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

What is the name of the type of fat that contains multiple droplets of lipids?

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

What is the main function of adipocytes in connective tissue?

<p>To deposit lipids (C)</p> Signup and view all the answers

What is the origin of macrophages in connective tissue?

<p>From monocytes that cross the vessel walls into connective tissue (D)</p> Signup and view all the answers

What percentage of the body's collagen is Type 1?

<p>90% (A)</p> Signup and view all the answers

What is the primary function of Type 2 collagen?

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

What type of collagen is found in epithelial basal lamina?

<p>Type 4 (C)</p> Signup and view all the answers

What is the characteristic of elastic fibers?

<p>Pale yellow and can stretch 2.5 times original length (A)</p> Signup and view all the answers

What type of collagen do reticular fibers consist of?

<p>Type 3 (A)</p> Signup and view all the answers

What is the result of a deficiency in Collagen Type III?

<p>Fragile skin syndromes (A)</p> Signup and view all the answers

What is the characteristic of Loose Connective Tissue?

<p>Loosely arranged fibers (A)</p> Signup and view all the answers

What is the main difference between Loose and Dense Irregular Connective Tissue?

<p>Number of cells and fibers (C)</p> Signup and view all the answers

In which type of Connective Tissue are fibers irregularly and regularly arranged?

<p>Dense Connective Tissue (B)</p> Signup and view all the answers

What is the relationship between Loose and Dense Irregular CT relative to an epithelium?

<p>The positioning of Loose and Dense CT varies relative to an epithelium (D)</p> Signup and view all the answers

What is the characteristic of Dense Connective Tissue?

<p>Many fibers and few cells (B)</p> Signup and view all the answers

What is the characteristic of Reticular Connective Tissue?

<p>Loose and dense irregularly arranged fibers (C)</p> Signup and view all the answers

What is the primary function of the ground substance in connective tissue?

<p>To facilitate the exchange of nutrients and waste (C)</p> Signup and view all the answers

What is the characteristic of connective tissue that distinguishes it from other tissues?

<p>Lack of polarity in cells (B)</p> Signup and view all the answers

Which of the following is a function of connective tissue in the body?

<p>To defend against injury and repair damaged tissue (A)</p> Signup and view all the answers

What is the term for connective tissue that has a high cellular density and little intercellular matrix?

<p>High cellular density connective tissue (A)</p> Signup and view all the answers

What type of collagen fibers do fibroblasts synthesize?

<p>Collagenous, elastic, and reticular fibers (B)</p> Signup and view all the answers

What color of adipocytes contain multiple droplets of lipids?

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

What is the function of reticular cells in connective tissue?

<p>To offer scaffolding to parenchymatous organs (A)</p> Signup and view all the answers

What is the function of macrophages in connective tissue?

<p>To phagocytose foreign particles (A)</p> Signup and view all the answers

What are the components of ground substance?

<p>Glycosaminoglycans and core proteins (B)</p> Signup and view all the answers

What is the main function of tissue fluid?

<p>To remove waste and maintain fluid balance (B)</p> Signup and view all the answers

What is the significance of skin turgor?

<p>It indicates hydration levels (C)</p> Signup and view all the answers

What is the role of lymphatics in connective tissue?

<p>To maintain fluid balance and prevent edema (B)</p> Signup and view all the answers

What is edema?

<p>A condition of fluid accumulation (A)</p> Signup and view all the answers

What is the relationship between proteoglycans and glycosaminoglycans?

<p>Glycosaminoglycans link to core proteins to form proteoglycans (D)</p> Signup and view all the answers

Which type of adult connective tissue has fibers that are loosely arranged and irregular?

<p>Loose Connective Tissue (C)</p> Signup and view all the answers

In which type of Connective Tissue are fibers densely packed and irregularly arranged?

<p>Dense Connective Tissue (C)</p> Signup and view all the answers

What is the characteristic of Reticular Connective Tissue?

<p>Fibers that form a scaffolding structure (D)</p> Signup and view all the answers

Where is Loose Connective Tissue typically found in the body?

<p>In the skin and epithelial tissues (C)</p> Signup and view all the answers

What is the primary function of leptin produced by adipocytes?

<p>Regulation of body fat (D)</p> Signup and view all the answers

In which type of tissue are reticular fibers typically found?

<p>Reticular Connective Tissue (C)</p> Signup and view all the answers

What is the primary function of Brown Adipose Tissue?

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

What is the characteristic of fibrocyte nuclei in Dense Regular Connective Tissue?

<p>Very thin and elongated (A)</p> Signup and view all the answers

What is the function of adipocytes in protecting the body?

<p>Absorbing external forces (D)</p> Signup and view all the answers

What is the characteristic of Unilocular fat cells?

<p>One lipid droplet (D)</p> Signup and view all the answers

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