The Primary Curves of the Vertebral Column are the ________

Question

The primary curves of the vertebral column are the ________.
A) cervical and thoracic
B) thoracic and sacral
C) dorsal and ventral
D) thoracic and coccygeal
E) cervical, lumbar, and sacral

Accepted Answer

The primary curves of the vertebral column are the thoracic and sacral curves, which are present at birth and develop during fetal development. The cervical and lumbar curves are considered secondary curves, as they develop later in infancy when the child learns to hold up their head and walk upright. The dorsal and ventral curves are not primary curves, as no vertebral column curve is referred to as "dorsal" or "ventral." The coccygeal curve is also a secondary curve, as it develops after birth as a result of sitting and crawling.