The system responsible for control of bodily functions via hormones is the endocrine system. This system comprises various glands, including the pituitary, thyroid, adrenal, and pancreas, which secrete hormones into the bloodstream. Hormones serve as chemical messengers that regulate numerous processes, such as metabolism, growth, reproduction, and mood. The endocrine system works in conjunction with the nervous system to maintain homeostasis, responding to internal and external stimuli to keep the body functioning optimally. Dysfunctions in this system can lead to a range of health issues, emphasizing its importance in human biology.