Final answer:
The nervous system uses action potentials along neurons to generate quick responses to external changes, while the endocrine system uses hormones released from glands to regulate internal processes and maintain homeostasis.
Step-by-step explanation:
The nervous system and endocrine system differ in their effector functions and the way they regulate the body's physiology. The nervous system uses action potentials along neurons to generate quick responses to external changes, while the endocrine system uses hormones released from glands to regulate internal processes and maintain homeostasis.
However, the two systems interact and work together to coordinate the body's functions. The nervous system can stimulate the release of hormones from endocrine glands, and the hormones can affect the activity of neurons. This coordinated interaction allows for rapid adjustments to external and internal environmental changes when needed.