Question

Cheranita is experiencing the first stage of the general adaptation syndrome. an environmental stressor has triggered a process in her brain in which the ____ activates the sympathetic branch of the ____ nervous system, which stimulates the adrenal gland, which then secretes adrenaline.

Answer 1

Cheranita is in the alarm reaction stage of GAS, where the sympathetic branch of the autonomic nervous system stimulates the adrenal gland to secrete adrenaline.

Step-by-step explanation:

Cheranita is experiencing the first stage of the general adaptation syndrome (GAS), known as the alarm reaction. In this stage, an environmental stressor triggers her brain to activate the sympathetic branch of the autonomic nervous system, which in turn stimulates the adrenal gland. The adrenal gland then secretes adrenaline, a hormone crucial for the fight-or-flight response. This physiological process prepares the body for extreme physical exertion. Epinephrine and norepinephrine are released from the adrenal medulla through the action of the sympathetic nervous system and provide the body with energy to manage stressful situations.

Answer 2

The correct answer is hypothalamus; autonomic.
The General Adaptation Syndrome (GAS) is the sequence of physiological processes which occur when we are exposed to a stressor. GAS is comprised of three stages which are the alarm, the resistance, and the exhaustion phase.

The first stage, known as the alarm phase, involves the fight or flight response, which is the natural reaction when under threat. A distress signal is sent by the amygdala to the hypothalamus, which in turn activates the sympathetic branch of the autonomous nervous system.