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LET Reviewer: Biology Questions 51-100 by Caroline B is a document available to read on EtoBox.

1. Thyroxine is insufficient in cretinism. 2. The pancreas is both an endocrine and exocrine gland. 3. The heart is controlled by the automatic nervous system. 4. Cretinism results from insufficient thyroxine production by the thyroid gland. The pancreas is a gland that produces both internal secretions (endocrine function) and external secretions through ducts (exocrine function). The heart is regulated by the automatic nervous system which controls involuntary muscles and organs.

Author

Caroline B

Language

EN