What is spina bifida? Spina bifida is a neural tube defect that develops during the first month of pregnancy when the spinal column does not close completely. What are the effects of spina bifida? The effects of spina bifida are different for every person.
Tsavorite or tsavolite is a variety of the garnet group species grossular, a calcium-aluminium garnet with the formula Ca3Al2Si3O12. Trace amounts of vanadium or chromium provide the green color.
(T4) [thi-rokÂ´sin] a thyroid hormone that contains iodine and is a derivative of the amino acid tyrosine, occurring naturally as l-thyroxine; its chemical name is tetraiodothyronine. It is formed and stored in the thyroid follicles as thyroglobulin and released from the gland by the action of a proteolytic enzyme.