Poor dietary intake of calcium is not likely to result in low blood calcium.
举一反三
- The following statements , _____, illustrate the functions of calcium. A: nerve cells need calcium for nerve impulse conduction B: muscle needs calcium to contract C: blood needs calcium to clot D: bone needs calcium to make itself hard
- The main function of calcitonin is A: increase blood calcium and blood phosphorus B: decrease blood calcium and blood phosphorus C: decrease blood calcium and increase blood phosphorus D: increase blood calcium and decrease blood phosphorus E: involve in the normal calcium regulation
- Paratfollicular cells or C cells of thyroid also secrete calcitonin, which has the function of ( ). A: Enhancing osteoblast activity B: Promoting the conversion of bone calcium into blood calcium C: Promoting calcification of bone tissue D: Reducing blood calcium E: Elevating blood calcium
- An excess of calcium in the blood is called_____.
- Excess calcium intake can reduce iron absorption