Question

question 24

which part of the vertebral column receives the most stress by bearing most of the weight of the body?

a the cervical region

b the lumbar region

c the sacral promontory

d the sacrum

Explanation:

Analyze the question requirements

The question asks which part of the vertebral column receives the most stress by bearing most of the weight of the body.

Evaluate the anatomical regions

Using the Vertebral Column Anatomy knowledge point

• The cervical region supports only the head.
• The thoracic region supports the head, neck, and upper limbs.
• The lumbar region supports the entire upper body, making its vertebrae the largest and strongest to handle this massive load.
• The sacrum transmits weight to the pelvic girdle but does not bear the dynamic weight of the upper body in the same flexible, stress-absorbing manner as the lumbar vertebrae.

Select the correct option

The lumbar region (Option B) experiences the greatest amount of physical stress because it bears the weight of the entire torso, head, and upper extremities.

Answer:

• (A) the cervical region
• (B) the lumbar region (Correct answer)
• (C) the sacral promontory
• (D) the sacrum