The epiphyseal plate is a very important area of the bones of children and adolescents, because it is in this region that _____ occurs
1.cartilage formation
2.cartilage calcification
3.bone growth
4.bone cell creation
5.all of these
5
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Breast-fed infants may need supplements of vitamin:
a. A. b. C. c. D. d. E.
Which of these statements is FALSE?
A. It is necessary for individuals to consume vitamin supplements in order to meet their daily vitamin needs. B. Dietary supplements, a category that includes vitamins, minerals, and herbs, are regulated less stringently by the Food and Drug Administration (FDA) than are drugs. C. The U.S. Pharmacopoeia (USP) sets standards for the identity, strength, quality, and purity of dietary supplements. D. Supplement manufacturers can voluntarily submit their products to the U.S. Pharmacopoeia (USP) to verify their supplement meets current standards.
When blood calcium levels fall, which of the following does NOT occur?
A) PTH is produced and activates vitamin D. B) PTH and vitamin D stimulate osteoblasts to break down bone. C) Vitamin D increases the absorption of calcium from the intestines. D) PTH and vitamin D stimulate the kidneys to reabsorb calcium from the blood.
Which nutrient has been implicated in fetal-origin errors?
a. vitamin B12 b. vitamin A c. iron d. selenium e. vitamin D