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..
When they do walk, they may do it more competently than their early-walking friends and take fewer spills. Talking. Most babies crawl and walk within a fairly short time period, but talking can really run the gamut. A baby of 12 months typically says one or two words, although only her parents may recognize them. By 18 months, the average baby says between five and 20 words. Between ages 1 and 2, most can put together a two-word sentence, and between 3 and 4, many know and use around 1,000 words.