Which system includes glands such as the thyroid and pituitary?

The endocrine system is responsible for producing and regulating hormones in the body, which are crucial for maintaining homeostasis and facilitating various bodily functions. The thyroid gland plays a pivotal role in metabolism, energy regulation, and growth, while the pituitary gland, often referred to as the "master gland," controls other endocrine glands and regulates numerous bodily processes, including stress response, growth, and reproduction. Together, these glands are central to the endocrine system's function of hormone secretion and regulation of physiological processes. This makes the endocrine system the correct answer in identifying which system includes the thyroid and pituitary glands.