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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'?

Maintaining posture and moving the axial skeleton Signup and view all the answers

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

Pelvic girdle Signup and view all the answers

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

Positioning and moving the upper limbs Signup and view all the answers

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

5 regions: cervical, thoracic, lumbar, sacral, and coccygeal Signup and view all the answers

What is the primary function of the vertebral column?

To protect the spinal cord and spinal nerves, and facilitate movement Signup and view all the answers

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

The vertebrae gradually increase in size from the cervical region to the sacrum, and then decrease towards the coccyx Signup and view all the answers

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

Synovial zygapophysial (facet) joints Signup and view all the answers

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

To separate and bind the vertebrae together Signup and view all the answers

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

It occurs at the junction of the long axes of the lumbar region and the sacrum Signup and view all the answers