What is a congenital condition in which there is failure of the spinal canal to close around the spinal cord?

____ is defined as water that moves at a speed of less than one knot.

A. Calm water B. Surf C. Hydraulic water D. Swift water

In which examination position does the patient lie on his back with his knees drawn up and his feet flat on the table? 

A. Prone B. Dorsal recumbent C. Fowler's D. Sims' E. Proctologic