Anatomy And Physiology Questions - Muscle Tissue

72 Questions | Total Attempts: 1281

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Anatomy And Physiology Questions - Muscle Tissue - Quiz

Questions about muscle tissue. Some of the questions are related to the mega case unit "Childhood" (muscle contraction, neuromuscular junction) and some of the questions are related to the "Maturity 1" case unit (differences between cardiac, skeletal and smooth muscles).


Questions and Answers
  • 1. 
    How much of the total body weight of an average adult is muscle tissue?
    • A. 

      20-30%

    • B. 

      30-40%

    • C. 

      40-50%

    • D. 

      50-60%

    • E. 

      60-70%

  • 2. 
    The three different types of muscle tissue differ from each other by:
    • A. 

      Microscopic anatomy

    • B. 

      Location

    • C. 

      Type of control

    • D. 

      A and B

    • E. 

      A, B and C

  • 3. 
    Which of the following is NOT a major function of muscle tissue?
    • A. 

      Moving blood throughout the body

    • B. 

      Generating heat through contractions

    • C. 

      Stopping the movement of joints

    • D. 

      Promoting movement of body structures

    • E. 

      Storing energy

  • 4. 
    This is the property of muscle that gives it the ability to stretch without damage.
    • A. 

      Electrical excitability

    • B. 

      Contractility

    • C. 

      Extensibility

    • D. 

      Elasticity

    • E. 

      Thermogenesis

  • 5. 
    In an isometric contraction the muscle develops tension but does not
    • A. 

      Lengthen

    • B. 

      Widen

    • C. 

      Shorten

    • D. 

      Conduct electrical current

    • E. 

      Exhibit elasticity

  • 6. 
    This is a band of connective tissue that surrounds muscles.
    • A. 

      Tendon

    • B. 

      Ligament

    • C. 

      Endomysium

    • D. 

      Epimysium

    • E. 

      Perimysium

  • 7. 
    When connective tissue extends as a broad flat layer, the tendon is referred to as
    • A. 

      Perimysium

    • B. 

      Deep fascia

    • C. 

      Fascicle

    • D. 

      Aponeurosis

    • E. 

      Endomysium

  • 8. 
    For every nerve that penetrates a skeletal muscle there are generally how many arteries and veins?
    • A. 

      One artery and one or two veins

    • B. 

      Two arteries and two veins

    • C. 

      Three arteries and two veins

    • D. 

      One artery and three veins

    • E. 

      One artery and a varied amount of veins

  • 9. 
    Axon terminal clusters at the ends of neuromuscular junctions are referred to as:
    • A. 

      Myelin bulbs

    • B. 

      Neuromuscular bulbs

    • C. 

      Synaptic end bulbs

    • D. 

      Axon collateral bulb

    • E. 

      Tubule bulb

  • 10. 
    After the fusion fo myoblasts, the muscle fibre loses its ability to do what?
    • A. 

      Grow

    • B. 

      Lengthen

    • C. 

      Contract

    • D. 

      Go through mitosis

    • E. 

      All of the above

  • 11. 
    The sequence that muscle action potentials must go through to excite a muscle cell is
    • A. 

      Sarcolemma, axon of neuron, T tubules

    • B. 

      T tubules, sarcolemma, myofilament

    • C. 

      Muscle fibre, axon of neuron, myofibrils

    • D. 

      Axon of neuron, sarcolemma, T tubles

    • E. 

      Myofibrils, myofilaments, mitochondria

  • 12. 
    The mitochondria in muscle fibre are arranged
    • A. 

      Randomly

    • B. 

      In circles

    • C. 

      Around the nuclei

    • D. 

      In rows

    • E. 

      Closest to the sarcolemma

  • 13. 
    These are the contractile organelles of the muscle fibre.
    • A. 

      Myofibrils

    • B. 

      Myoglobin

    • C. 

      Mitochondria

    • D. 

      Z disc

    • E. 

      M line

  • 14. 
    This part of the skeletal muscle cell releases calcium when stimulated by the T tubules.
    • A. 

      Myofibrils

    • B. 

      Sarcoplasm

    • C. 

      Terminal cisterns of sarcoplasmic reticulum

    • D. 

      Sarcomeres

    • E. 

      None of the above

  • 15. 
    The sarcoplasmic reticulum is used for storing
    • A. 

      Oxygen

    • B. 

      ATP

    • C. 

      Phosphate ions

    • D. 

      Sodium ions

    • E. 

      Calcium ions

  • 16. 
    Which of the following contains thin filaments?
    • A. 

      I band

    • B. 

      A band

    • C. 

      H zone

    • D. 

      A and B

    • E. 

      A, B and C

  • 17. 
    Which of the following contain thick filament?
    • A. 

      Zone of overlap

    • B. 

      A band

    • C. 

      H zone

    • D. 

      B and C

    • E. 

      A, B and C

  • 18. 
    Myofibrils contain
    • A. 

      Contractile proteins

    • B. 

      Regulatory proteins

    • C. 

      Structural proteins

    • D. 

      All of the above

    • E. 

      None of the above

  • 19. 
    Which of the following functions as a motor protein in all three types of muscle tissue?
    • A. 

      Actin

    • B. 

      Myosin

    • C. 

      Troponin

    • D. 

      Titin

    • E. 

      Tropomyosin

  • 20. 
    What regulatory proteins can be found on an actin molecule?
    • A. 

      Troponin and titin

    • B. 

      Tropomyosin and troponin

    • C. 

      Myosin and titin

    • D. 

      Titin and tropomyosin

    • E. 

      Titin and actin

  • 21. 
    Titin is found in a sarcomere
    • A. 

      In the A band only

    • B. 

      In the H zone only

    • C. 

      From Z disc to Z disc

    • D. 

      From M line to Z disc

    • E. 

      In the I band only

  • 22. 
    Which of the following is used to reinforce the sarcolemma?
    • A. 

      Troponin

    • B. 

      Tropomyosin

    • C. 

      Myosin

    • D. 

      Actin

    • E. 

      Dystrophin

  • 23. 
    In the sliding filament mechanism, the thin filament is being pulled towards the
    • A. 

      Z disc

    • B. 

      Sarcolemma

    • C. 

      M line

    • D. 

      A band

    • E. 

      I band

  • 24. 
    The sarcoplasmic reticulum releases calcium ions into the cytosol
    • A. 

      At the beginning of a contraction

    • B. 

      Throughout the entire contraction

    • C. 

      During the midpoint only of the contraction

    • D. 

      After the contraction ends

    • E. 

      Not during the contraction

  • 25. 
    What energizes the myosin head?
    • A. 

      The actin filaments

    • B. 

      Calcium ions

    • C. 

      Potassium ions

    • D. 

      ATP hydrolysis reaction

    • E. 

      ADP synthesis

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