Spinal branches, pass into the vertebral canal via the intervertebral foramina and contribute to supply not only of the vertebral bodies and extradural content of the canal, but also of the dura and spinal cord, reinforcing the anterior and posterior spinal arteries.
Your baby will be able to see pretty clearly by the time he's 12 months old, but his vision won't be fully developed until he's between 3 and 5 years old. A baby's vision improves dramatically over the first year. At birth an infant can detect light and motion, then can make out faces and large shapes. By the end of the first month, a baby can make eye contact and focus on objects about 12 inches away. By the time a baby is 3 to 4 months old, he can distinguish between colors and focus on smaller objects.
Description. An infant learns to recognize her parents within the first few months of birth by sight, sound, and smell. Until about six months of age, the baby will usually seem interested in other adults as well, engaging in games such as peek-a-boo.