3. Thyroid gland
6-7 Calcitonin and Parathyroid Hormone
9. Thyroid gland
CASE STUDY ANSWERS:
1 The disease or condition that can be associated with the patient's symptoms is hypoparathyroidism, which is responsible for the regulation of the blood calcium level.
2. The most likely cause for the decrease of the patient blood calcium level is due to the low concentration of his PTH.