Calcium is an important mineral in the body, and one that is tightly regulated in the blood with the help of several hormones. C
alcium status plays an important role in the health of bones and a variety of other metabolic functions. Therefore, it is essential to understand where to find calcium in food, and what factors affect bioavailability and absorption.
Match the words to the appropriate sentences.
1. Over 99% of the body's calcium is in the bones and teeth.
2. When blood calcium is low, the parathyroid glands stimulate the production of parathyroid hormone (PTH).
3. Bone density refers to the compactness and strength of bones. 4. Osteoclasts break down bone when calcium levels are low.
5. The bioavailability of calcium can depend on a person's age and calcium needs.
6. Too much calcium in the blood, or hypercalcemia, can lead to impaired kidneys and calcium deposits in the body.
7. Certain foods like spinach are high in oxalates, which can interfere with absorption of certain minerals.
a. calcium
b. bioavailability
c. osteoclasts
d. hypercalcemia
e. parathyroid hormone (PTH)
f. oxalates
g. bone density
h. osteoblasts
1 answer:
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