Skeletal system

Question 1

What are normal curves?

Answer 1

• the vertebral column shows 4 slight bends called normal curves
• relative to the front of the body, the cervical & lumbar curves are convex (bulging out), & the thoracic & sacral curves are concave (cupping in)
• the curves of the vertebral column increases strength, help maintain balance in the upright position, absorbs shock during walking & running, & help protect the vertebrae from breaks

Question 2

Which curves are concave relative to the front of the body?

Answer 2

sacral & thoracic

Question 3

Which curves are convex relative to the front of the body?

Answer 3

cervical & lumbar

Question 4

What are the function of vertebral normal curves in the body?

Answer 4

• increases strength
• help maintain balance in the upright position
• absorbs shock during walking & running
• help protect the vertebrae from breaks

Question 5

What are the main distinguishing characteristics of the bones
of the various regions of the vertebral column?

Answer 5

The body
The vertebral arch
Seven processes