Tetany resulting from uncontrolled muscle spasms may indicate a malfunction of the: 13:44 Biology Chapter 9 Tetany resulting from uncontrolled muscle spasms may indicate a malfunction of the: A) pineal gland B) thymus C) parathyroid glands D) adrenal cortex E) posterior pituitary Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+