Skin Layers and Composition Quiz
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Questions and Answers

What is the function of the serous membranes?

  • To protect the organs from external pathogens
  • To secrete mucus to keep the organs moist
  • To absorb nutrients from the organs
  • To reduce friction between the layers and provide lubrication (correct)

What is the name of the serous membrane around each lung in the thoracic cavity?

  • Pleura (correct)
  • Mucocutaneous junction
  • Peritoneum
  • Synovial membrane

What is the epithelial composition of most mucous membranes?

  • Stratified squamous or simple columnar epithelium (correct)
  • Pseudostratified columnar epithelium
  • Simple squamous epithelium
  • Stratified cuboidal epithelium

What is the function of the synovial membranes?

<p>To produce synovial fluid to reduce friction between articulating bones (D)</p> Signup and view all the answers

What is the primary organ of the integumentary system?

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

What type of tissue forms the connective tissue layer of a serous membrane?

<p>Fibrous connective tissue (C)</p> Signup and view all the answers

What forms the superficial layer of epithelial cells in the cutaneous membrane?

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

What is the function of a serous membrane that lines body cavities?

<p>Preventing friction between organs (D)</p> Signup and view all the answers

Where does hair growth begin?

<p>At the hair papilla at the base of the follicle (A)</p> Signup and view all the answers

What is the role of eccrine sweat glands?

<p>To produce a transparent, watery liquid called perspiration (B)</p> Signup and view all the answers

What causes the odor associated with apocrine gland secretion?

<p>The contamination and decomposition of the secretion by skin bacteria (C)</p> Signup and view all the answers

Where is the mechanical strength of the skin located?

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

What gives the skin its elasticity and ability to stretch and recoil?

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

What is the function of friction ridges on the skin?

<p>Improve grip and sense textures (C)</p> Signup and view all the answers

Which layer of the skin is filled with a dense network of interlacing fibers, mostly collagen fibers?

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

Which layer lies deep to the dermis and forms a connection between the skin and underlying structures of the body?

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

What is the primary function of melanin?

<p>To protect tissues from harmful UV radiation (A)</p> Signup and view all the answers

Which layer of the skin is responsible for producing the pigment melanin?

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

What happens when the junction between the epidermal and dermal layers is weakened or destroyed?

<p>Blisters may result (A)</p> Signup and view all the answers

What substance provides cells in the outer layer of the skin with a horny, abrasion-resistant, and protective quality?

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

Which layer of the skin is made up largely of connective tissue?

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

Which type of skin cancer is the most serious?

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

What causes sebum to darken and form a blackhead?

<p>Exposure to air (C)</p> Signup and view all the answers

What is the cause of Kaposi sarcoma (KS)?

<p>Human herpesvirus 8 (HHV8) (D)</p> Signup and view all the answers

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