Muscle Length and Strength Testing Quiz
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Questions and Answers

What does muscle length testing assess for?

  • Limitations of range of motion (correct)
  • Motor nerve supply to the muscles
  • Sensory nerve supply to the muscles
  • Strength of muscle contraction

    • What does muscle strength testing determine?

  • Ability to sustain muscle contraction
  • Ability to contract a muscle voluntarily (correct)
  • Ability to isolate muscle groups
  • Sensory nerve supply to the muscles

    • What do myotome tests assess?

  • Innervation by a specific spinal nerve (correct)
  • Sensory nerve supply to the muscles
  • Motor nerve supply to the muscles
  • Ability to sustain muscle contraction

    • What does a dermatome test assess?

    <p>Innervation by a specific spinal nerve</p> Signup and view all the answers

    What is the purpose of the dermatome test?

    <p>To assess altered sensation possibly due to nerve root or peripheral nerve injury</p> Signup and view all the answers

    What is the typical response to a dull sensation when differentiating between sharp and dull sensations using a reflex hammer?

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

    Which part of the body does the dermatome test for upper extremity assess?

    <p>Shoulder and clavicular area</p> Signup and view all the answers

    What is the primary purpose of deep tendon reflex testing?

    <p>Assessing the integrity of the motor system</p> Signup and view all the answers

    What is the purpose of orthopedic assessment tests?

    <p>To recreate specific symptoms and formulate clinical impressions</p> Signup and view all the answers

    What does a 1+ grading indicate in deep tendon reflex testing?

    <p>Present but depressed response</p> Signup and view all the answers

    Which part of the body does the dermatome test for lower extremity assess?

    <p>Anterior thigh to knee</p> Signup and view all the answers

    Which myotome is responsible for shoulder abduction?

    <p>C5</p> Signup and view all the answers

    Which myotome is associated with thumb extension and ulnar deviation?

    <p>C7</p> Signup and view all the answers

    Which myotome is responsible for elbow extension and wrist flexion?

    <p>C6</p> Signup and view all the answers

    Which myotome is responsible for ankle dorsiflexion?

    <p>L4</p> Signup and view all the answers

    Which myotome is associated with great toe extension?

    <p>L3</p> Signup and view all the answers

    Which myotome is responsible for hip extension?

    <p>S1</p> Signup and view all the answers

    Which area of the body does the C1 dermatome test assess?

    <p>Vertex of skull</p> Signup and view all the answers

    Which myotome is associated with elbow flexion and forearm pronation?

    <p>C6</p> Signup and view all the answers

    Which part of the body does the T1 dermatome test for upper extremity assess?

    <p>Anteromedial limb to base of little finger</p> Signup and view all the answers

    Which dermatome is responsible for sensation in the big toe?

    <p>L5</p> Signup and view all the answers

    Which dermatome is associated with sensation in the groin and medial thigh to knee?

    <p>L2</p> Signup and view all the answers

    Which dermatome covers the perineum, genitals, and lower sacrum?

    <p>S4</p> Signup and view all the answers

    Which nerve root is associated with the Achilles tendon reflex?

    <p>Nerve Root S1</p> Signup and view all the answers

    Which nerve root is responsible for the biceps stretch reflex?

    <p>Nerve Root C5</p> Signup and view all the answers

    Which nerve root is linked to the triceps stretch reflex?

    <p>Nerve Root C7</p> Signup and view all the answers

    Study Notes

    Muscle and Nerve Testing

    • Muscle length testing assesses for muscle length and flexibility.
    • Muscle strength testing determines muscle strength and power.

    Dermatome Testing

    • Dermatome tests assess sensation in specific areas of the body.
    • The primary purpose of the dermatome test is to assess sensation and determine which nerve roots are affected.
    • A typical response to a dull sensation when differentiating between sharp and dull sensations using a reflex hammer is a withdrawal or flinching response.

    Upper and Lower Extremity Dermatome Testing

    • The dermatome test for upper extremity assesses the arms, hands, and fingers.
    • The dermatome test for lower extremity assesses the legs, feet, and toes.

    Deep Tendon Reflex Testing

    • The primary purpose of deep tendon reflex testing is to assess the integrity of the nervous system, particularly the nerve roots and peripheral nervous system.
    • A 1+ grading in deep tendon reflex testing indicates a slight but noticeable reflex response.

    Myotome Testing

    • Myotome tests assess muscle function and strength.
    • The myotome responsible for shoulder abduction is C5.
    • The myotome associated with thumb extension and ulnar deviation is C8.
    • The myotome responsible for elbow extension and wrist flexion is C6 and C7.
    • The myotome responsible for ankle dorsiflexion is L4 and L5.
    • The myotome associated with great toe extension is L5.
    • The myotome responsible for hip extension is L5 and S1.

    Specific Dermatome and Myotome Associations

    • The C1 dermatome tests assess the area around the occiput and posterior scalp.
    • The myotome associated with elbow flexion and forearm pronation is C5 and C6.
    • The T1 dermatome tests assess the medial aspect of the arm and forearm.
    • The dermatome responsible for sensation in the big toe is L5.
    • The dermatome associated with sensation in the groin and medial thigh to knee is L2 and L3.
    • The dermatome that covers the perineum, genitals, and lower sacrum is S3 to S5.

    Reflexes and Nerve Roots

    • The nerve root associated with the Achilles tendon reflex is S1 and S2.
    • The nerve root responsible for the biceps stretch reflex is C5 and C6.
    • The nerve root linked to the triceps stretch reflex is C7 and C8.

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    Test your knowledge about muscle length testing and muscle strength testing, which are used to assess flexibility and the ability to contract muscles voluntarily.

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