Human Back Anatomy

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Questions and Answers

Which of the following structures is NOT directly associated with the back region?

  • Scapulae (correct)
  • Spinal cord and meninges
  • Intervertebral discs
  • Segmental nerves and vessels

The muscles of the back can be divided into which two main layers?

  • Axial and appendicular
  • Anterior and posterior
  • Superficial and deep (correct)
  • Superior and inferior

Which of the following statements about the intervertebral discs is TRUE?

  • They are fibrocartilaginous structures located between the bodies of adjacent vertebrae (correct)
  • They are present only in the cervical region of the vertebral column
  • They are made of bone tissue
  • They are located between the transverse processes of adjacent vertebrae

What is the primary function of the 'true back muscles'?

<p>Maintaining posture and moving the axial skeleton (B)</p> Signup and view all the answers

Which of the following structures is NOT mentioned as being part of the back region?

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

What is the primary function of the superficial layer of back muscles?

<p>Positioning and moving the upper limbs (D)</p> Signup and view all the answers

How many regions does the vertebral column consist of in an adult?

<p>5 regions: cervical, thoracic, lumbar, sacral, and coccygeal (C)</p> Signup and view all the answers

What is the primary function of the vertebral column?

<p>To protect the spinal cord and spinal nerves, and facilitate movement (B)</p> Signup and view all the answers

Which of the following statements about the size of the vertebrae is true?

<p>The vertebrae gradually increase in size from the cervical region to the sacrum, and then decrease towards the coccyx (C)</p> Signup and view all the answers

What type of joints facilitate and control the flexibility of the vertebral column?

<p>Synovial zygapophysial (facet) joints (C)</p> Signup and view all the answers

What is the function of the intervertebral (IV) discs?

<p>To separate and bind the vertebrae together (A)</p> Signup and view all the answers

Which of the following statements about the lumbosacral angle is true?

<p>It occurs at the junction of the long axes of the lumbar region and the sacrum (C)</p> Signup and view all the answers

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