Secondary curvatures in the infant result from reshaping or modifications of the

Secondary curvatures at birth is Cervical and lumbar that result from reshaping of the intervertebral discs rather than from modifications of the vertebrae  Cervical curvature at birth; Present before birth, but not pronounced until the baby starts to lift its head. 

i don’t no. suiopgohjk

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]