Final answer:
Both the endocrine and nervous systems use chemical signals to communicate and regulate the body's physiology. The nervous system involves quick responses to rapid changes in the external environment, while the endocrine system is slower acting and takes care of the internal environment. The two systems work together to maintain homeostasis and adjust physiological activity when conditions change.
Step-by-step explanation:
Both the endocrine and nervous systems use chemical signals to communicate and regulate the body's physiology. The endocrine system releases hormones that act on target cells to regulate development, growth, energy metabolism, reproduction, and behaviors. The nervous system releases neurotransmitters or neurohormones that regulate neurons, muscle cells, and endocrine cells.
The nervous system involves quick responses to rapid changes in the external environment, while the endocrine system is slower acting and takes care of the internal environment. The fast action of the nervous system stimulates the adrenal glands to secrete hormones and causes rapid endocrine responses to sudden changes in both the external and internal environments.
Neural signaling enables quick, brief actions such as movement and sensation, while endocrine signaling requires more time to prompt a response in target cells. Overall, the endocrine and nervous systems work in a coordinated manner to regulate the body's physiology.