Adrenal medulla is no essential for life though its hormone enable us to face stress and danger why?

While the adrenal medulla is not essential for life, its hormones, epinephrine (adrenaline) and norepinephrine (noradrenaline), play crucial roles in the body's response to stress and danger. These hormones are part of the body's "fight or flight" response, which prepares the body to deal with stressful or life-threatening situations.

When we encounter a stressor, the adrenal medulla releases epinephrine and norepinephrine into the bloodstream. These hormones cause a variety of physiological changes that prepare us for action, including:

* Increased heart rate and blood pressure

* Dilated pupils

* Increased blood flow to the muscles

* Increased breathing rate

* Increased sweat production

* Heightened mental alertness and focus

These changes allow us to respond to threats more effectively. For example, the increased heart rate and blood pressure ensure that oxygen and nutrients are delivered to the muscles, while the dilated pupils allow us to see more clearly. The increased breathing rate helps us take in more oxygen, and the increased sweat production helps to cool the body down. The heightened mental alertness and focus help us to make quick decisions and react appropriately to the situation.

While the adrenal medulla is not essential for life, its hormones play a vital role in helping us to cope with stress and danger. Without these hormones, we would be much less able to respond effectively to challenging situations.