In response to stress, what part of the nervous system activates adrenal hormone secretion?

The sympathetic nervous system plays a crucial role in the body's response to stress by activating adrenal hormone secretion. When an individual experiences stress, the sympathetic nervous system triggers the adrenal medulla to release catecholamines, such as adrenaline (epinephrine) and norepinephrine. These hormones prepare the body for a "fight or flight" response, leading to increased heart rate, enhanced blood flow to muscles, and increased energy availability.

This activation helps the body respond to potentially threatening situations efficiently. In contrast, the central nervous system primarily processes information and does not directly stimulate adrenal hormone release. The enteric nervous system governs the functions of the gastrointestinal tract and is not involved in stress responses. The somatic nervous system controls voluntary movements and muscle activity rather than hormonal responses associated with stress. Thus, the sympathetic nervous system is the correct choice for its direct involvement in mediating the hormonal changes that occur during stress.