Skeletal System Overview
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Questions and Answers

What is one of the primary functions of the skeletal system related to organ protection?

  • Enclosing the brain (correct)
  • Facilitating gas exchange
  • Regulating body temperature
  • Supporting the weight of the body

    • Where is yellow marrow primarily located?

  • Epi-epiphyseal region
  • Flat bones
  • Ends of long bones
  • Shaft of long bones (correct)

    • What kind of tissue is bone also known as?

  • Adipose tissue
  • Cartilage
  • Osseous tissue (correct)
  • Muscle tissue

    • Which of the following bones protects the spinal cord?

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

    What is the main function of red marrow in bones?

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

    How do nutrients and wastes travel between osteocytes?

    <p>Via the canaliculi</p> Signup and view all the answers

    What role do osteoclasts play in bone physiology?

    <p>They break down the bony matrix</p> Signup and view all the answers

    Where is trabeculae primarily located in long bones?

    <p>In the epiphysis and perimeter of marrow cavity</p> Signup and view all the answers

    What is the first skeletal development that occurs after fertilization?

    <p>Development of hyaline cartilage</p> Signup and view all the answers

    Which mineral salts are involved in calcification of bone?

    <p>Calcium Carbonate and Calcium Phosphate</p> Signup and view all the answers

    What type of bone is primarily located in the diaphysis and is made of haversian systems?

    <p>Compact Bone</p> Signup and view all the answers

    Which structure in spongy bone indicates the solidified growth plate?

    <p>Epiphyseal Line</p> Signup and view all the answers

    What is the role of canaliculi in bone structure?

    <p>Connect lacunae to the central canal</p> Signup and view all the answers

    Which of the following describes the periosteum?

    <p>Dense connective tissue covering the bone surface</p> Signup and view all the answers

    What are osteons primarily responsible for in compact bone?

    <p>Acting as the functional unit of bone tissue</p> Signup and view all the answers

    What type of bone is the femur classified as?

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

    Which part of a long bone is referred to as the diaphysis?

    <p>Shaft of the bone</p> Signup and view all the answers

    What is the primary function of the articular cartilage?

    <p>Allows smooth movement in joints</p> Signup and view all the answers

    Which type of bone has a porous structure and fills the inner layer of long bones?

    <p>Cancellous bone</p> Signup and view all the answers

    What type of bone is the vertebrae classified as?

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

    What is the function of nutrient arteries in bones?

    <p>Deliver nutrients to the bone tissue</p> Signup and view all the answers

    What type of bone is classified as non-uniform in shape?

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

    What forms around the diaphysis during the early stages of bone development?

    <p>A bone collar</p> Signup and view all the answers

    During which stage does the cartilage in the center of the diaphysis begin to calcify?

    <p>Week 9 to month 3</p> Signup and view all the answers

    What is formed by the invading periosteal bud?

    <p>Spongy bone</p> Signup and view all the answers

    Which of the following remains after ossification is complete?

    <p>Epiphyseal plate</p> Signup and view all the answers

    What characterizes the diaphysis during the stage from birth to childhood?

    <p>It elongates and forms a medullary cavity</p> Signup and view all the answers

    What is the role of the epiphyseal plate in bone development?

    <p>To allow the bone to increase in length</p> Signup and view all the answers

    What serves as the initial template for bone development?

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

    What happens to hyaline cartilage as ossification progresses?

    <p>It is slowly replaced by spongy bone.</p> Signup and view all the answers

    Study Notes

    • The skeletal system includes: bones, joints, ligaments, and cartilage.
    • The primary function of the skeletal system is support (provides framework—legs/pillars), protection (protects soft organs—encloses brain), and movement (muscles attach to bones to allow movement).
    • Yellow marrow is located in the marrow cavity of long bones and stores energy/mineral reserves.
    • Red marrow is located in the ends of long bones/flat bones and makes RBCs/WBCs/blood elements.
    • Bones protect soft tissues and organs:
      • Skull → brain
      • Ribcage → thoracic organs (lungs, heart, kidneys)
      • Vertebrae → spinal cord
      • Pelvis → urinary bladder, reproductive organs, digestive organs
    • Another name for bone is osseous tissue. It is a supporting connective tissue consisting of extracellular protein fibers and ground substance.

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    Description

    This quiz covers the essential components and functions of the skeletal system, including its role in support, protection, and movement. It also discusses the different types of bone marrow and their functions in the body. Test your knowledge of bones, joints, and cartilage!

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