Bones of the vertebral column

Question 1

How many vertebrae in the vertebral colums

Answer 1

33 vertebrae

Question 2

what are the 5 divisions of the vertebral colums and how many vertebrae in each devision

Answer 2

7 cervical (C1-C7)
12 thoracic (T1-T12)
5 lumbar (L1-L5)
5 sacral fused to form sacrum (S1-S4)
2-4 coccygeal fused to form coccyx

Question 3

How many types of curves are there in the vertebral column

Answer 3

primary and secondary curve (cervical and lumbar curve)

Question 4

which direction is each curve:
cervical curvature-
thoracic curvature-
lumbar curvature-
sacral/ coccygeal curvature-

Answer 4

cervical curvature- convex anterior (2ndry)
thoracic curvature- concave anterior
lumbar curvature- convex anterior (2ndry)
sacral/ coccygeal curvature- concave anterior

Question 5

when and why does the cervical curvature become convex anterior

Answer 5

at 3-4 months to support baby’s neck

Question 6

when and why does the lumbar curvature become convex anterior

Answer 6

at 12-18 months to support baby’s back while standing