Home ยป In which one of the following is extra blood stored and is released when shortage occurs? Circulatory System MCQs In which one of the following is extra blood stored and is released when shortage occurs? April 22, 2022 15 Views Q. In which one of the following is extra blood stored and is released when shortage occurs? A. Adrenal gland B. Pancreas C. Spleen D. Thyroid gland Answer: Spleen