When you are under stress, the brain's ________ sends messages to the endocrine glands along two major pathways.

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When the body is under stress, the hypothalamus sends messages to the endocrine glands along two pathways - the sympathetic nervous system and the hypothalamic-pituitary-adrenal (HPA) axis. The amygdala and hippocampus are also involved in the stress response, but their primary roles are in processing emotions and memories, respectively, and not in directly sending messages to the endocrine system. The corpus callosum is a bundle of nerve fibers that connects the two hemispheres of the brain and is not directly involved in the stress response.

When You Are Under Stress, the Brain's ________ Sends Messages