ANATOMY

Detailed explanation-1: -As muscular strength and ability is gained, the baby’s activity will shift body weight to the spine. Gradually secondary curves develop in the cervical and lumbar regions; Lordotic curves. These curves will continue to develop until growing stops. Spinal curves are either kyphotic or lordotic.

Detailed explanation-2: -During fetal development, the primary curves in the thoracic spine develop, as well as the sacral curve at the bottom of the spine. As babies, children have a C-shaped spine. Secondary curves in the cervical and lumbar spine develop as infants become able to lift their heads, sit up, crawl, stand, and walk.

Detailed explanation-3: -The vertebral column has four curvatures, the cervical, thoracic, lumbar, and sacrococcygeal curves. The thoracic and sacrococcygeal curves are primary curves retained from the original fetal curvature. The cervical and lumbar curves develop after birth and thus are secondary curves.

Detailed explanation-4: -Spinal Curve Development The shape of the spine at birth is similar to the shape of the letter “C". At around the age of 3 months, as the baby raises it’s head, the cervical spine gains it’s “lordosis” or reversed “C” shape curve.

Detailed explanation-5: -Normal lordosis is the two forward curves seen in the neck (cervical spine) and low back (lumbar spine). Normal kyphosis is the two backward curves seen in the chest (thoracic spine) and hip areas (sacral spine).