MSK lec 3 sync
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Questions and Answers

Which muscle lies on the lateral and posterior aspects of the neck, covering the vertical muscles like a bandage?

  • Splenius muscles (correct)
  • Spinalis muscles
  • Iliocostalis muscles
  • Erector spinae muscles
  • What is the function of the erector spinae muscles?

  • Chief flexors of the vertebral column
  • Chief extensors of the vertebral column (correct)
  • Chief rotators of the vertebral column
  • Chief lateral flexors of the vertebral column
  • Which muscle forms the medial column of the erector spinae muscle group?

  • Iliocostalis
  • Spinalis (correct)
  • Longissimus
  • Splenius
  • Which muscle group is primarily responsible for rotation of the vertebral column?

    <p>Transversospinalis muscle group</p> Signup and view all the answers

    Which deep back muscle group is located between the spinous processes centrally and the angles of the ribs laterally?

    <p>Erector spinae muscle group</p> Signup and view all the answers

    Where is the common origin of the three erector spinae columns?

    <p>Sacro-iliac ligaments</p> Signup and view all the answers

    Which muscle group is deep to the erector spinae and consists of semispinalis, multifidus, and rotatores muscles?

    <p>Transversospinalis muscle group</p> Signup and view all the answers

    Which muscle group is often referred to as the 'long muscles' of the back?

    <p>Erector spinae muscle group</p> Signup and view all the answers

    Where do the fibers of Longissimus muscle attach?

    <p>Mastoid process of occiput</p> Signup and view all the answers

    Which deep back muscle is the most superficial in the transversospinalis muscle group?

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

    Which of the following muscles is divided into three parts based on its superior attachments?

    <p>Semispinalis capitis</p> Signup and view all the answers

    Which deep back muscle is best developed in the thoracic region and is part of the transversospinalis group?

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

    What is the primary action of the multifidus muscle within the deep back muscles?

    <p>Stabilization of vertebral column</p> Signup and view all the answers

    Which minor deep back muscle helps with respiration by elevating ribs and lateral flexion of the column?

    <p>Levatores costarum</p> Signup and view all the answers

    In the deep back muscles, which muscles connect the spinous processes of vertebrae?

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

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