LRA 223 Week 1 Exam Questions & 100% Verified Correct Answers with complete solutions [Latest update 2025/2026]

LRA 223: Week 1 Exam Latest 2025
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The vertebral column has how many divisions ?

5




Divisions of the vertebral column are?

cervical, thoracic, lumbar, sacrum, coccyx




How many vertebrae are in each division for adults?

Cervical Vertebrae (7)

Thoracic Vertebrae (12)

Lumbar Vertebrae (5)

Sacrum Vertebrae. (1)

Coccyx. (1)

, The spinal cord begins with the _1._______________of the brain and extends down to the
_2.___________vertebra, where it tapers and ends. This tapered ending is called the 3._______?

1. medulla oblongata

2. lower border of L1

3. conus medullaris




What is the first compensatory curve?

Cervical curvature (concave) (lordotic)




What is the first primary curve?

Thoracic curvature (convex)




What is the second compensatory curve?

Lumbar curvature (concave) (lordotic)




What is the second primary curve?

sacral curvature (convex)




What is kyphosis?

Humpback (exaggerated curvature convex) in the thoracic area




What is lordosis?

Swayback (exaggerated curvature concave) in the lumbar region