Which body system is used to regulate blood sugar through hormone response?

• A. Nervous
• B. Circulatory
• C. Endocrine
• D. Digestive

Answer: (C)

Blood sugar is regulated through hormonal signaling carried by the endocrine system. Hormones like insulin and glucagon control glucose levels: insulin lowers blood sugar by helping cells take in glucose, while glucagon raises it by signaling the liver to release stored glucose. The pancreas is a key endocrine gland that produces these hormones. While the nervous system can influence how hormones are released and the circulatory system transports them, the regulation of blood sugar via hormonal response is the endocrine system. The digestive system can affect glucose availability by absorbing sugars from food, but it doesn’t regulate blood sugar through hormone action in the same way.