Which body system consists of glands that regulate growth, development, reproduction, and overall health of the body?

• A. Endocrine system
• B. Nervous system
• C. Dermatology
• D. Trichology

Answer: (A)

The body's endocrine system uses glands that secrete hormones into the bloodstream to regulate growth, development, reproduction, and overall health. These chemical messengers travel to target organs, guiding processes like metabolism, energy balance, tissue function, and your body's response to stress. Because hormones operate through feedback loops, this system adjusts levels to maintain balance over longer periods, which is essential for growth and maturation. The nervous system, in contrast, controls rapid, short-term actions through nerve signals, while dermatology and trichology are fields focused on skin and hair, not on systemic regulation. Glands such as the pituitary, thyroid, adrenal, pancreas, and gonads illustrate how the endocrine system coordinates wide-ranging functions, making it the best fit for the description.