（128 ～ 131 题共用备选答案）A．Melan-A（+） B．CDX-2（+）C．TTF-1（+）D．Calcitonin（+）E．CK5/6（+）大肠癌 A: Melan-A（+） B: CDX-2（+） C: TTF-1（+） D: Calcitonin（+） E: CK5/6（+）

人类calcitonin的主要来源是

中国大学MOOC: 人类calcitonin的主要来源是

Which gland secretes calcitonin? A: Pancreas B: Thyroid C: Pineal gland D: Adrenal gland

The main source of calcitonin in plasma is A: thyroid C cells B: islet D cells C: placenta D: parathyroid cells

人类calcitonin的主要来源是() A: 甲状旁腺细胞 B: 腺垂体细胞 C: 胰岛A细胞 D: 甲状腺C细胞

Which gland secretes calcitonin A: Pancreas B: Thyroid C: Pineal gland D: Adrenal gland (cortex) E: Adrenal gland (medulla)

Which<br/>gland secretes calcitonin ____? A: Pancreas B: Thyroid C: Pineal gland D: Adrenal gland (cortex) E: Adrenal gland (medulla)

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