Scalene Muscles Quiz
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Questions and Answers

Which muscles are located in the lateral aspect of the neck?

  • Levator scapulae muscles
  • Sternocleidomastoid muscles
  • Scalene muscles (correct)
  • Trapezius muscles

    • Which muscles are located in the lateral aspect of the neck?

  • Deltoid muscles
  • Sternocleidomastoid muscles
  • Trapezius muscles
  • Scalene muscles (correct)

    • What is the function of the scalene muscles?

  • Flexion at the knee
  • Adduction at the shoulder
  • Accessory muscles of respiration (correct)
  • Extension at the neck

    • Which triangle of the neck do the scalene muscles form part of the floor?

    <p>Posterior triangle</p> Signup and view all the answers

    Which muscle is located deep to the sternocleidomastoid on the lateral aspect of the neck?

    <p>Anterior scalene muscle</p> Signup and view all the answers

    Which triangle of the neck do the scalene muscles form part of?

    <p>Posterior triangle</p> Signup and view all the answers

    What is the function of the scalene muscles?

    <p>Flexion at the neck</p> Signup and view all the answers

    Which is the largest and longest of the three scalene muscles?

    <p>Middle scalene muscle</p> Signup and view all the answers

    What is the function of the scalene muscles?

    <p>Accessory muscles of respiration</p> Signup and view all the answers

    Which scalene muscle is located deep to the sternocleidomastoid on the lateral aspect of the neck?

    <p>Anterior scalene muscle</p> Signup and view all the answers

    Which scalene muscle is located deep to the sternocleidomastoid on the lateral aspect of the neck?

    <p>Anterior scalene</p> Signup and view all the answers

    Which muscle is the smallest and deepest of the scalene muscles?

    <p>Posterior scalene muscle</p> Signup and view all the answers

    Which is the largest and longest of the three scalene muscles?

    <p>Middle scalene</p> Signup and view all the answers

    Which structures pass between the anterior and middle scalene muscles?

    <p>Brachial plexus and subclavian artery</p> Signup and view all the answers

    Which scalene muscle is the largest and longest of the three scalene muscles?

    <p>Middle scalene muscle</p> Signup and view all the answers

    Which scalene muscle is the smallest and deepest of the scalene muscles?

    <p>Posterior scalene muscle</p> Signup and view all the answers

    Which is the smallest and deepest of the scalene muscles?

    <p>Posterior scalene</p> Signup and view all the answers

    Which structures pass anteriorly to the anterior scalene?

    <p>Subclavian vein and phrenic nerve</p> Signup and view all the answers

    What is an interscalene block?

    <p>A block of the brachial plexus</p> Signup and view all the answers

    Which structures pass between the anterior and middle scalene muscles?

    <p>Brachial plexus and subclavian artery</p> Signup and view all the answers

    What passes between the anterior and middle scalene muscles?

    <p>Brachial plexus and subclavian artery</p> Signup and view all the answers

    Which muscles form part of the floor of the posterior triangle of the neck?

    <p>Scalene muscles</p> Signup and view all the answers

    What passes anteriorly to the anterior scalene muscle?

    <p>Subclavian vein</p> Signup and view all the answers

    Which structures pass anteriorly to the anterior scalene?

    <p>Subclavian vein and phrenic nerve</p> Signup and view all the answers

    What is the main function of the scalene muscles in patients with respiratory distress?

    <p>To aid with breathing</p> Signup and view all the answers

    What is the function of the scalene muscles in patients with respiratory distress?

    <p>They act as accessory muscles of respiration</p> Signup and view all the answers

    What is the function of the scalene muscles in patients with respiratory distress?

    <p>Aid with breathing</p> Signup and view all the answers

    What is an interscalene block?

    <p>Infiltration of local anaesthetic between the anterior and middle scalene muscles</p> Signup and view all the answers

    What is an interscalene block?

    <p>A type of nerve block for the brachial plexus</p> Signup and view all the answers

    Which muscle is located deepest to the sternocleidomastoid on the lateral aspect of the neck?

    <p>Posterior scalene muscle</p> Signup and view all the answers

    Which muscle is the most medial of the three scalene muscles?

    <p>Anterior scalene</p> Signup and view all the answers

    Which muscle is not part of the scalene group?

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

    Which artery passes between the anterior and middle scalene muscles?

    <p>Subclavian artery</p> Signup and view all the answers

    Which muscle group is responsible for flexion and rotation of the neck?

    <p>Sternocleidomastoid muscles</p> Signup and view all the answers

    Which muscle is the most lateral of the three scalene muscles?

    <p>Posterior scalene</p> Signup and view all the answers

    Which nerve passes anteriorly to the anterior scalene?

    <p>Phrenic nerve</p> Signup and view all the answers

    Study Notes

    • The scalene muscles are three paired muscles located in the lateral aspect of the neck.
    • They form part of the floor of the posterior triangle of the neck.
    • The scalenes act as accessory muscles of respiration and perform flexion at the neck.
    • The anterior scalene muscle is located deep to the sternocleidomastoid on the lateral aspect of the neck.
    • The middle scalene is the largest and longest of the three scalene muscles.
    • The posterior scalene is the smallest and deepest of the scalene muscles.
    • The brachial plexus and subclavian artery pass between the anterior and middle scalene muscles.
    • The subclavian vein and phrenic nerve pass anteriorly to the anterior scalene.
    • The scalene muscles are used as 'accessory muscles of respiration' to aid with breathing in patients with respiratory distress.
    • The brachial plexus can be infiltrated with local anaesthetic between the anterior and middle scalene muscles for an interscalene block.

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    Description

    Do you know your scalene muscles? Test your knowledge with our quiz! Learn about the anatomy and function of the anterior, middle, and posterior scalene muscles, as well as their role as accessory muscles of respiration. Discover how the brachial plexus and subclavian artery pass between the scalene muscles and how they can be used for an interscalene block. Take the quiz now and become a scalene muscle expert!

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