1. Which spinal cord region is located at the neck and controls movement and sensation in the head, neck, shoulders, arms, and hands?

2. What region of the spinal cord, located in the upper back, is responsible for posture and stability, containing 12 pairs of spinal nerves?

3. Which spinal cord region in the lower back helps control movement and sensation in the hips, thighs, knees, and lower legs?

4. What region of the spinal cord, located near the tailbone, provides sensation to the pelvic area, genital, buttocks, and feet?