the musculoskeletal system
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Questions and Answers

What is the primary function of cartilage in the musculoskeletal system?

  • To provide attachment points for muscles
  • To reduce friction during movement (correct)
  • To produce blood cells
  • To connect bones to each other

What is the role of tendons in the musculoskeletal system?

  • To connect bones to each other
  • To provide attachment points for muscles (correct)
  • To produce blood cells
  • To lubricate joints

What is the function of the synovial membrane fluid in the musculoskeletal system?

  • To connect bones to each other
  • To provide attachment points for muscles
  • To reduce friction during movement (correct)
  • To produce blood cells

What is the process by which bone marrow produces blood cells?

<p>Hematopoiesis (D)</p> Signup and view all the answers

What is the role of mesenchymal stem cells in the musculoskeletal system?

<p>To differentiate into other cell types within the same lineage (D)</p> Signup and view all the answers

What is the primary function of ligaments in the musculoskeletal system?

<p>To connect bones to each other and provide stability (B)</p> Signup and view all the answers

What is the primary effect of endurance exercise on muscle fibres?

<p>Formation of more capillary networks (B)</p> Signup and view all the answers

Which type of muscle fibre is predominantly used in resistance exercise?

<p>Fast-twitch fibres (C)</p> Signup and view all the answers

What is the term for the age-related decline in muscle mass and function?

<p>Sarcopenia (D)</p> Signup and view all the answers

What is the primary function of cardiac muscle?

<p>To generate force to pump blood throughout the body (D)</p> Signup and view all the answers

What is the characteristic of smooth muscle fibres that allows them to twist as they contract?

<p>Non-striated appearance (C)</p> Signup and view all the answers

What is the process by which muscles return to their original length when relaxed?

<p>Elasticity (C)</p> Signup and view all the answers

What is the primary factor that determines the cell type generated by a stem cell?

<p>The condition and stresses placed on the stem cell (A)</p> Signup and view all the answers

What is the main function of long bones?

<p>To move as levers (C)</p> Signup and view all the answers

What is the name of the hard, outer layer of a long bone?

<p>Compact bone (C)</p> Signup and view all the answers

What is the name of the process by which osteoclasts break down bone?

<p>Bone resorption (B)</p> Signup and view all the answers

What is the name of the primary cell of mature bone?

<p>Osteocyte (B)</p> Signup and view all the answers

What is the name of the structure that connects two bones together?

<p>Articulation (D)</p> Signup and view all the answers

What is the name of the cells that are responsible for forming new bone matrix?

<p>Osteoblasts (D)</p> Signup and view all the answers

What is the name of the cells that are responsible for breaking down bone?

<p>Osteoclasts (C)</p> Signup and view all the answers

What is the name of the process by which bone grows?

<p>Bone formation (D)</p> Signup and view all the answers

What is the name of the structure that is responsible for bone growth?

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

What is required for calcium absorption in the body?

<p>Vitamin D (A)</p> Signup and view all the answers

What is the term for the reduction in bone mass, where the rate of bone resorption exceeds the rate of bone formation?

<p>Osteoporosis (A)</p> Signup and view all the answers

What is the type of joint that allows for freely movable joints?

<p>Synovial joint (D)</p> Signup and view all the answers

What is the function of the bursa in the skeletal system?

<p>To reduce friction between skin, ligaments, muscles, and tendons (D)</p> Signup and view all the answers

What is the type of muscle tissue that skeletal muscle is composed of?

<p>Striated muscle (B)</p> Signup and view all the answers

What is the process by which skeletal muscles contract and relax?

<p>The sliding filament theory (A)</p> Signup and view all the answers

What is the purpose of the sarcoplasmic reticulum in the nervous system's control of muscle tension?

<p>To store calcium (A)</p> Signup and view all the answers

What happens when muscle cells grow during exercise?

<p>The existing muscle cells grow in size (C)</p> Signup and view all the answers

What is the term for the connection between the axon terminal and a specialized area of the sarcolemma?

<p>Neuromuscular junction (B)</p> Signup and view all the answers

What is the role of acetylcholine in the nervous system's control of muscle tension?

<p>To bind to its receptors and depolarize the sarcolemma (A)</p> Signup and view all the answers

What is the primary function of osteocytes in bone health?

<p>To maintain the mineral concentration of the bone matrix (A)</p> Signup and view all the answers

What is the main difference between long bones and short bones?

<p>Long bones are longer than they are wide (C)</p> Signup and view all the answers

What is the role of osteoblasts in bone health?

<p>To form new bone matrix (A)</p> Signup and view all the answers

What is the term for the type of bone that provides strength to the bone from the lines of stress?

<p>Trabecular bone (A)</p> Signup and view all the answers

What is the function of the epiphyseal plate in bone growth?

<p>To facilitate bone growth (D)</p> Signup and view all the answers

What is the primary function of osteoclasts in bone health?

<p>To break down bone matrix (C)</p> Signup and view all the answers

What is the name of the type of bone that is irregular in shape?

<p>Irregular bone (B)</p> Signup and view all the answers

What is the name of the structure that connects two bones together?

<p>Ligament (C)</p> Signup and view all the answers

What is the primary function of mesenchymal stem cells in the musculoskeletal system?

<p>To generate cells based on the condition and stress placed on them (B)</p> Signup and view all the answers

What is the term for the type of bone marking that is an opening or groove in the bone?

<p>Hole (D)</p> Signup and view all the answers

What is the primary function of synovial fluid in the joint cavity?

<p>To reduce friction between bones and joints (A)</p> Signup and view all the answers

What is the role of the epimysium in skeletal muscle tissue?

<p>To provide connective tissue support to the muscle (A)</p> Signup and view all the answers

What is the effect of calcium binding to troponin in the sliding filament theory?

<p>It exposes the myosin binding sites on actin (D)</p> Signup and view all the answers

What is the role of the sarcoplasmic reticulum in the nervous system's control of muscle tension?

<p>To store calcium ions for muscle contraction (C)</p> Signup and view all the answers

What is the result of the action potential moving further into the depth of the muscle fibers?

<p>Calcium ions are released from the sarcoplasmic reticulum (B)</p> Signup and view all the answers

What is the effect of Ach binding to its receptors on the muscle fiber?

<p>It depolarizes the muscle fiber membrane (B)</p> Signup and view all the answers

What is the result of muscle cells growing during exercise?

<p>The muscle cells grow in size (D)</p> Signup and view all the answers

What is the function of the ligaments in the musculoskeletal system?

<p>To provide structural support to the joint (D)</p> Signup and view all the answers

What is the role of the perimysium in skeletal muscle tissue?

<p>To separate the muscle fibers into fascicles (D)</p> Signup and view all the answers

What is the result of the myosin heads binding to actin in the sliding filament theory?

<p>The actin molecules slide past the myosin heads (B)</p> Signup and view all the answers

What is the primary function of ligaments in the musculoskeletal system?

<p>To connect bones to each other and provide stability (C)</p> Signup and view all the answers

What is the role of cartilage in the musculoskeletal system?

<p>To cushion and reduce friction during movement (D)</p> Signup and view all the answers

What is the process by which mesenchymal stem cells differentiate into other mature cells?

<p>Differentiation into cells of the same lineage (D)</p> Signup and view all the answers

What is the function of the synovial membrane fluid in the musculoskeletal system?

<p>To lubricate the joint and reduce friction (B)</p> Signup and view all the answers

What is the role of bone marrow in the musculoskeletal system?

<p>To produce blood cells through hematopoiesis (B)</p> Signup and view all the answers

What is the function of tendons in the musculoskeletal system?

<p>To attach muscles to bones (B)</p> Signup and view all the answers

What is the primary adaptation of muscle fibres in response to endurance exercise?

<p>Formation of more capillary networks (A)</p> Signup and view all the answers

What is the characteristic of cardiac muscle fibres that allows them to contract as a unit?

<p>They are physically and electrically connected to one another (C)</p> Signup and view all the answers

What is the process that occurs when muscle cells eventually die and are replaced with connective tissue and adipose tissue with age?

<p>Muscle atrophy (A)</p> Signup and view all the answers

What is the characteristic of smooth muscle fibres that allows them to twist as they contract?

<p>They are non-striated (B)</p> Signup and view all the answers

What is the primary function of skeletal muscles?

<p>To allow people to move and perform daily activities (D)</p> Signup and view all the answers

What is the result of resistance exercise on muscle fibres?

<p>Hypertrophy of muscle fibres (C)</p> Signup and view all the answers

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