Why do you hiccup when drinking soda?

In a what eye lens forces image short od the retina? Does strong urine mean you have a STD? Does the right atrium carry oxygenated blood or deoxygenated blood? Which blood vessel has the most superficial tunic? Which tunic is especially thick in elastic arteries? What if had a light period after had sore breasts nausea dizzy all very pronounced you never get these as pms it continue until your next light period all blood urine negative this is the 3rd mos? How does the digestive system affect the rest of the body? How namy lumbar vertebrae does a human have? Why trachea never collapse when there is insuficient air in it? How long should a girl wait after sex to check for pregnancy? Can you enlist in the military if you have a personality disorder? Why do people who dont have herpes get cold sores? How many cycles should you perform on an adult in 2 minutes? The part of the brain concerned with visual perception? If you swallowed a bunch of nickels would you go blind? If your blood is positive for hypothyroidism could it be incorrect? What are the symptoms of neuropathy? How did people think scurvy was caused? How is chyme produced? Which epidermal stratum could find many phases of mitosis?