A combination of these symptoms due to vertebral narrowing is called vertebral insufficiency. Note that a narrowing in the subclavian arteries (which supply the arms) can also sometimes cause vertebral symptoms, since the vertebral arteries branch from these arteries.
1 Some eager parents interpret a string of da-da babbles as their baby's first words -- daddy!. 2  But babbling at this age is usually still made up of random syllables without real meaning or comprehension. 3  Baby talk at 9 months. 4  After 9 months, babies can understand a few basic words like no and bye-bye..
1 Most babies say a few simple words such as 'mama' and 'dada' by the end of 12 months - and now know what they're saying. They respond to - or at least understand, if not obey - your short, one-step requests such as, 'Please put that down.'.  Baby talk at 18 months. By this age, babies may use up to 20 simple words, like daddy, dog or cup. They should also be able to point to people, objects and body parts you name for them. They repeat words or sounds they hear you say such as the last word in a sentence.