Respiratory and Circulatory Systems

Last update by FunnelBrain on 10/17/2010
28762 People have viewed this Quiz
  • Share

What are erythrocytes and what do they do?

Answer:
red blood cells; they transport oxygen throughout the body

View Respiratory and Circulatory Systems as Flashcard Deck

Related Quiz Content
  • FunnelBrain
    What cellular elements in blood play a significant role in blood clotting?
    platelets
  • FunnelBrain
    Trace the flow of blood through the circulatory system, starting with the right atrium.
    right atrium right ventricle pulmonary arteries lungs pulmonary veins left atrium left ventricle aorta [systemic circuit] vena cava right atrium
  • FunnelBrain
    Name the only arteries that carry deoxygenated blood, and the only veins that carry oxygenated blood.
    pulmonary arteries; pulmonary veins
  • FunnelBrain
    What iron-containing protein in erythrocytes helps carry oxygen through the blood?
    hemoglobin
  • FunnelBrain
    Explain the importance of the hormone erythropoietin.
    -Erythropoietin stimulates the bone marrow to produce red blood cells (erythrocytes). -It is produced by the kidneys in response to oxygen deficiency in the body.
  • FunnelBrain
    In what respiratory structures in humans does gas exchange occur?
    alveoli
  • FunnelBrain
    What two features do all animal respiratory structures have in common?
    1. moist respiratory surface 2. large surface area to volume ratio
  • FunnelBrain
    What is an advantage of a double circuit circulatory system over a single circuit circulatory system?
    #Single circuits, as in fish, cause blood to flow from the heart to the respiratory organ (gills) where the blood is oxygenated, but much pressure is lost; this low pressure blood then must travel through all of the body;s systems at a very low pressure before returning to the heart; Double circuits allow the blood to return to the heart after receiving oxygen to get a "boost" of pressure before travelling through the systemic circuit.
  • FunnelBrain
    In what three different forms is carbon dioxide transported in the blood?
    1. bicarbonate ions (HCO3-) 2. bound to hemoglobin (as carbaminohemoglobin) 3. dissolved CO2
  • FunnelBrain
    Why do terrestrial animals have internal respiratory systems?
    because they have adapted to address the threat of desiccation (drying out) of moist respiratory surfaces