Back Pain Back Pain Anatomy and Physiology

Question 1

Which spinal region consists of 5 vertebrae and bears the most body weight?

Accepted Answer

Lumbar

Answer

Cervical

Answer

Thoracic

Answer

Sacral

Question 2

What structure lies between adjacent vertebral bodies and acts as a shock absorber?

Accepted Answer

Intervertebral disc

Answer

Facet joint

Answer

Ligamentum flavum

Answer

Pedicle

Question 3

The nucleus pulposus is composed primarily of which substance?

Accepted Answer

Proteoglycans and water

Answer

Collagen type I

Answer

Hyaluronic acid

Answer

Calcium phosphate

Question 4

Which muscle group is often called the 'core' and is critical for lumbar spine stabilization?

Accepted Answer

Transversus abdominis

Answer

Hamstrings

Answer

Gastrocnemius

Answer

Quadriceps

Question 5

The cauda equina is a collection of nerve roots located below which vertebral level?

Accepted Answer

L2

Answer

T12

Answer

L1

Answer

S1

Question 6

Which ligament runs along the posterior aspect of the vertebral bodies inside the spinal canal?

Accepted Answer

Posterior longitudinal ligament

Answer

Anterior longitudinal ligament

Answer

Supraspinous ligament

Answer

Iliolumbar ligament