Why adernal gland is known as emergency gland in human body?

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Answer

Adrenaline is a hormone secreted by adrenal medulla during stress. This is called as emergency hormone because it initiates quick reation which makes the individual to think and respond quickly to the stress. Thehormone increases metabolic rate. there occurs dialation of blood vessels going to heart and the brain.

Answer

Becouz it helps the body to face and prepare emergency situation such as extreme danger... by increasing the blood pressure, heart beat and glucose level of the body.

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Adrenal called as the gland of emergency because they release Adrenaline hormone which is called a emergency hormone, When adrenaline is secreted into the blood it prepares our body for action. It speeds up heart beat and breathing, raises blood pressure and allows more glucose(Carbohydrate) to go into the blood to give us lot of energy quickly to run or fight. Additionally it is secreted in the body when body is under severe physical/emotional stress or depression. It helps us to deal with emergency situation by generating more energy in the body, thatswhy Adrenaline is called an Emergency Hormone. And Adrenal glands are called Glands of Emergency.

I hope it helped you.

Answer

The Adrenal Gland: The Emergency Gland in the Human Body

The adrenal gland is known as the 'emergency gland' in the human body due to its crucial role in responding to stress and maintaining homeostasis. It is a small, triangular-shaped endocrine gland located on top of each kidney. The adrenal gland is composed of two distinct parts: the outer adrenal cortex and the inner adrenal medulla.

The Adrenal Cortex
The adrenal cortex is responsible for the production of various steroid hormones that are essential for normal bodily functions. It can be further divided into three layers, each producing different types of hormones:

1. Mineralocorticoids: The outermost layer of the adrenal cortex produces mineralocorticoids, primarily aldosterone. Aldosterone helps regulate sodium and potassium levels in the body, maintaining blood pressure and electrolyte balance.

2. Glucocorticoids: The middle layer of the adrenal cortex produces glucocorticoids, primarily cortisol. Cortisol plays a critical role in the body's stress response by regulating metabolism, suppressing inflammation, and supporting the immune system.

3. Sex Hormones: The innermost layer of the adrenal cortex produces small amounts of sex hormones, including androgens and estrogens. Although the majority of sex hormones are produced by the gonads, the adrenal cortex contributes to their production.

The Adrenal Medulla
The adrenal medulla is the inner part of the adrenal gland and is responsible for the production and release of adrenaline (epinephrine) and noradrenaline (norepinephrine). These hormones are released in response to stress or emergency situations and contribute to the 'fight or flight' response.

Role in Emergency Situations
During stressful situations, the adrenal gland plays a vital role in preparing the body to respond effectively. It releases stress hormones, including cortisol, adrenaline, and noradrenaline, which have several effects on the body:

1. Increased Heart Rate and Blood Pressure: Adrenaline and noradrenaline increase heart rate and constrict blood vessels, ensuring adequate blood flow to essential organs during emergencies.

2. Enhanced Energy Production: Cortisol stimulates the breakdown of stored glycogen into glucose, providing a quick source of energy to cope with the stressful situation.

3. Suppressed Immune Response: Cortisol suppresses the immune system temporarily to redirect energy towards immediate survival needs.

4. Heightened Awareness and Focus: Adrenaline and noradrenaline increase mental alertness and focus, enabling individuals to react swiftly to emergency situations.

5. Dilation of Airways: Adrenaline and noradrenaline relax the smooth muscles in the airways, allowing for increased oxygen intake during stressful events.

In Conclusion
The adrenal gland serves as the body's 'emergency gland' due to its ability to produce and release hormones that help the body respond to stress and maintain homeostasis. The adrenal cortex produces essential steroid hormones, while the adrenal medulla releases adrenaline and noradrenaline during emergency situations. These hormones play a crucial role in preparing the body for fight or flight responses, ensuring survival in stressful circumstances.

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