NBCE Exam 2026 – 400 Free Practice Questions to Pass the National Board of Chiropractic Examiners

The primary function of the adrenal glands is to produce hormones related to stress and metabolism. This includes the secretion of cortisol, which helps the body respond to stress and regulates various functions such as metabolism, immune response, and blood pressure. Additionally, the adrenal glands produce adrenaline (epinephrine) and noradrenaline (norepinephrine), hormones that prepare the body for a 'fight or flight' response during stressful situations.

While the other options do involve important bodily functions, they are not the primary roles of the adrenal glands. For instance, regulating blood sugar levels is mainly the responsibility of the pancreas, which produces insulin and glucagon. The immune response is largely controlled by other components of the endocrine and immune systems. Digestion is primarily facilitated by the gastrointestinal tract along with hormones produced by the pancreas and stomach. Thus, the focus of the adrenal glands on stress and metabolism sets them apart in their primary function.