Food iron is absorbed by the intestinal mucosa from two separate pools of heme and nonheme iron. Heme iron, derived from hemoglobin and myoglobin, is well absorbed and relatively little affected by other foods eaten in the same meal. On the other hand, the absorption of nonheme iron, the major dietary pool, is greatly influenced by meal composition.
Five years later, the FDA approved. the first cochlear implant for use in children ages 2. years and older. And in 2000, the FDA approved the. implantation of children as young as 12 months of age. for one type of cochlear implant.
The cochlear implant is surgically implanted in the skull behind the ear and electronically stimulates the nerve of hearing with small wires touching the cochlea. External parts of the device includes a microphone, a speech processor (for converting sounds into electrical impulses), connecting cables, and a battery.