Your digestive system breaks nutrients into parts that are small enough for your body to absorb. How does my digestive system work? Each part of your digestive system helps to move food and liquid through your GI tract, break food and liquid into smaller parts, or both. Once foods are broken into small enough parts, your body can absorb and move the nutrients to where they are needed.
Metropolitan Transportation Commission MTC is the transportation planning, financing and coordinating agency for the nine-county San Francisco Bay Area. MTC is committed to operating its programs and services in accordance with federal, state and local civil rights laws and regulations.
Calcitonin test. The pentagastrin-stimulated calcitonin test is a diagnostic test for medullary carcinoma of the thyroid (MTC). MTC is a malignancy of the calcitonin-secreting cells of the thyroid gland, and thus MTC is commonly associated with an elevated calcitonin level, but an elevated level may not always be obvious.