The pituitary and thyroid glands are components of the: a) endocrine system(pron: EN-do-kren) b) cardiovascular system c) lymphatic system(pron: lim-FAT-ik) d) respiratory system
option a. While many elements of the frame make hormones, the important glands that make up the endocrine system are the: hypothalamus. pituitary. thyroid.
