Arterial System Function and Structure
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Questions and Answers

What is the primary function of large arteries?

  • To absorb and distribute blood when the heart contracts
  • To carry blood away from the heart and out to body tissues (correct)
  • To have minimal elastic fibers in their walls
  • To recoil, driving blood to smaller arteries
  • Why do arterial walls recoil between heart contractions?

  • To carry blood away from the heart
  • To drive blood to arterioles and smaller arteries (correct)
  • To distribute blood to body tissues
  • To have considerable elastic fibers
  • In the circulatory system, what is the consequence of large arteries having elastic fibers?

  • Increased blood flow during heart contractions (correct)
  • Enhanced absorption by arterioles
  • Slower recoil between contractions
  • Reduced blood flow towards tissues
  • Where does the mesonephros form in amniote embryonic life?

    <p>Middle of the mesomere</p> Signup and view all the answers

    Which part of the embryo houses the mesonephros during its formation?

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

    What is the primary function of the mesonephros in amniote embryonic life?

    <p>Excretion of waste products</p> Signup and view all the answers

    Which organ system does the mesonephros belong to during amniote embryonic life?

    <p>Excretory system</p> Signup and view all the answers

    What does the mesonephros develop into as embryonic development progresses?

    <p>Functional kidney</p> Signup and view all the answers

    What does the term 'relative amount of water' refer to in the context?

    <p>The ratio of water to nitrogen needed for excretion</p> Signup and view all the answers

    How is the amount of water needed for excreting nitrogen measured?

    <p>In milliliters per gram of nitrogen</p> Signup and view all the answers

    Which factor determines the water requirement for nitrogen excretion?

    <p>The form in which nitrogen is excreted</p> Signup and view all the answers

    What information does the water-to-nitrogen ratio provide?

    <p>The efficiency of the excretion process</p> Signup and view all the answers

    In the context presented, what does 'excrete nitrogen in its various forms' imply?

    <p>Different chemical forms of nitrogen excreted by organisms</p> Signup and view all the answers

    What is the difference in the meningeal structure between mammals and amphibians, reptiles, and birds?

    <p>Mammals have an outer dura mater and a middle arachnoid membrane while amphibians, reptiles, and birds have an outer dura mater and a thin vascular pia mater.</p> Signup and view all the answers

    Which space is absent in the brain region of mammals due to fusion of the dura mater with the skull lining?

    <p>Epidural space</p> Signup and view all the answers

    Which structure returns cerebrospinal fluid to the venous blood in the brain?

    <p>Arachnoid villi</p> Signup and view all the answers

    Where do the neural crest cells appear after the formation of the neural tube?

    <p>Between the neural tube and ectoderm</p> Signup and view all the answers

    What is the primary function of the telencephalon in elasmobranchs?

    <p>Olfactory functions</p> Signup and view all the answers

    Which part of the brain serves as a center for many vital body activities like respiration and heart action?

    <p>Medulla oblongata</p> Signup and view all the answers

    What distinguishes the brain of bony fishes from that of elasmobranchs?

    <p>Undivided lateral ventricle</p> Signup and view all the answers

    Where is melatonin produced in bony fishes?

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

    What is unique about the pallium in amphibians compared to fishes?

    <p>Invasion by nerve cells</p> Signup and view all the answers

    What serves as a relay center for olfactory and visual impulses in bony fishes?

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

    What is the fundamental purpose of the urinary system mentioned in the text?

    <p>Maintain chemical and physical constancy of blood and other body fluids</p> Signup and view all the answers

    Which part of the urogenital system is responsible for the production of urine?

    <p>Urinary System</p> Signup and view all the answers

    What term describes anatomically associated excretory and reproductive systems that are physiologically and functionally dissimilar?

    <p>Urogenital System</p> Signup and view all the answers

    Which part of the vertebrate nephron produces an ultrafiltrate of the blood into a space?

    <p>Renal corpuscle + renal tubule + associated capillaries</p> Signup and view all the answers

    In which group of animals is the archinephric duct utilized by the testis?

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

    Which statement best describes the kidneys of reptiles mentioned in the text?

    <p>Turtles and lizards have well-developed bilobed bladders opening into the cloaca.</p> Signup and view all the answers

    What type of kidney is found in fish with multiple nephrons per segment and a new caudal duct?

    <p>Mesonephric kidney</p> Signup and view all the answers

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