Central Nervous System Quiz
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Questions and Answers

What type of response is elicited through the reflex arc?

  • A sensory interpretation response
  • A quick and automatic response (correct)
  • A response requiring high cognitive processing
  • A slow and deliberate response

    • Which of the following is NOT a layer of the meninges surrounding the central nervous system?

  • Dura mater
  • Arachnoid
  • Neuroglia (correct)
  • Pia mater

    • Where is the spinal cord located in relation to the vertebral column?

  • Dorsal and hollow (correct)
  • Medial and filled with air
  • Lateral and solid
  • Ventral and hollow

    • What is contained between the layers of the meninges?

    <p>Cerebrospinal fluid</p> Signup and view all the answers

    What are the two main components of the central nervous system?

    <p>Spinal cord and brain</p> Signup and view all the answers

    What is the primary function of plicae circulares in the epithelial lining?

    <p>To increase surface area for absorption</p> Signup and view all the answers

    How much does the presence of villi increase the surface area for absorption?

    <p>By 10 times</p> Signup and view all the answers

    What type of structural adaptation do microvilli represent?

    <p>Folding of the plasma membrane</p> Signup and view all the answers

    Which of the following statements about villi is accurate?

    <p>They are finger-like projections that increase absorption surface area.</p> Signup and view all the answers

    Which surface modification increases intestinal surface area by the greatest factor?

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

    What is a characteristic of a blind gut?

    <p>It has only one opening.</p> Signup and view all the answers

    Which phase is NOT part of the food processing in animals?

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

    Which digestive enzyme is responsible for breaking down proteins?

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

    In which phase does absorption of ions and small molecules occur?

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

    What is a defining feature of the tube-within-a-tube gut structure?

    <p>Food is ingested and moves through a digestive tube.</p> Signup and view all the answers

    What role do hydrolases play in digestion?

    <p>They break down larger molecules.</p> Signup and view all the answers

    Which of the following phases comes first in the food processing sequence?

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

    What is the primary function of lipases in the digestive system?

    <p>To emulsify and break down fats</p> Signup and view all the answers

    What is the primary function of an osteonic canal?

    <p>It provides a passageway for blood vessels and nerves.</p> Signup and view all the answers

    What are lamellae in bone tissue?

    <p>Concentric rings of bone tissue.</p> Signup and view all the answers

    Where are osteocytes located within bone structure?

    <p>Inside the lacunae.</p> Signup and view all the answers

    What is the medullary cavity primarily used for?

    <p>Storage of adipose tissue.</p> Signup and view all the answers

    Which statement accurately describes canaliculi?

    <p>They are microscopic canals connecting lacunae to each other.</p> Signup and view all the answers

    What does the diaphysis refer to in long bone anatomy?

    <p>The shaft of the bone.</p> Signup and view all the answers

    What type of skeleton do soft-bodied invertebrates predominantly use for propulsion?

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

    In what bone region is red bone marrow typically found?

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

    Which of the following describes the epiphysis in bone structure?

    <p>It is the ends of the bone.</p> Signup and view all the answers

    What type of tissue is primarily stored in the yellow bone marrow?

    <p>Adipose tissue</p> Signup and view all the answers

    What structure covers the external surface of a long bone, except at the articular surface?

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

    What type of joint is capable of allowing the greatest range of motion?

    <p>Ball-and-socket joint</p> Signup and view all the answers

    What type of muscle is classified as involuntary and has a single nucleus per cell?

    <p>Smooth muscle</p> Signup and view all the answers

    In a skeletal muscle cell, what is the functional unit responsible for contraction?

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

    What is the primary function of red bone marrow found in the epiphysis of certain bones?

    <p>Production of blood cells</p> Signup and view all the answers

    Which type of muscle is characterized as striated and voluntary?

    <p>Skeletal muscle</p> Signup and view all the answers

    Which part of the skeleton consists of limb bones and girdles?

    <p>Appendicular skeleton</p> Signup and view all the answers

    What type of joint allows for rotational movement around a single axis?

    <p>Pivot joint</p> Signup and view all the answers

    What is the substance stored in the medullary cavity of long bones?

    <p>Yellow bone marrow</p> Signup and view all the answers

    What structure is primarily responsible for absorbing shock at the articular surfaces of bones?

    <p>Hyaline cartilage</p> Signup and view all the answers

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