Functions of the Cardiovascular System
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Questions and Answers

What is the function of the cardiovascular system in transporting materials?

  • Only transporting waste products
  • Transporting oxygen, nutrients, hormones, and immune system components (correct)
  • Only regulating pH and ions
  • Only transporting oxygen and nutrients

    • What is the role of the formed elements in the blood?

  • To transport dissolved substances
  • To transport oxygen, and to involve in blood clotting (correct)
  • To regulate pH and ions
  • To defend against toxins and pathogens, and to stabilize body temperature

    • What is the function of the myeloid stem cells in the production of blood cells?

  • To produce only RBCs
  • To produce only myeloid cells
  • To produce only lymphoid cells
  • To produce both myeloid and lymphoid cells (correct)

    • What is the characteristic of the blood in terms of its viscosity and pH?

    <p>High viscosity and slightly alkaline pH</p> Signup and view all the answers

    What is the approximate percentage of blood volume in the body weight of an adult?

    <p>7-8% of body weight</p> Signup and view all the answers

    What is the main function of the integumentary system in terms of protection?

    <p>Cushioning and insulation of deeper organs</p> Signup and view all the answers

    What is the process of separating whole blood into its components for analysis?

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

    What is the role of Merkel cells in the epidermis?

    <p>Connection to sensory nerve endings</p> Signup and view all the answers

    What is the term for the clear layer of the epidermis?

    <p>Stratum lucidum</p> Signup and view all the answers

    What is the function of the stratum granulosum layer of the epidermis?

    <p>Protection against abrasion and penetration</p> Signup and view all the answers

    What is the main source of skin colour in individuals with low levels of melanocytes?

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

    What is the precursor molecule used by melanocytes to produce melanin?

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

    What type of plexus is responsible for the capillary network from small arteries in the papillary layer?

    <p>Papillary plexus</p> Signup and view all the answers

    What is the term for the damage to blood vessels that causes black and blue lesions?

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

    Which of the following is related to the dermal circulation?

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

    What is the term for the network of blood vessels along the reticular layer?

    <p>Cutaneous plexus</p> Signup and view all the answers

    What is the function of the nerve fibers in the dermal circulation?

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

    What is the term for the return of blood from the capillary plexus deep to the papillary plexus?

    <p>Venous return</p> Signup and view all the answers

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