Q. Which one of the following is NOT part of the endocrine system?
A. the islets of Langerhans (pancreatic islets)
B. the thyroid gland
C. the acini cells of the pancreas
D. the parathyroid glands
Answer: the acini cells of the pancreas
A. the islets of Langerhans (pancreatic islets)
B. the thyroid gland
C. the acini cells of the pancreas
D. the parathyroid glands
Answer: the acini cells of the pancreas