ADRENAL MEDULLAS Meaning and
Definition
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The adrenal medullas refer to the innermost part of the adrenal glands, which are small endocrine glands located on top of the kidneys. The adrenal glands consist of two distinct sections: the outer layer, called the adrenal cortex, and the inner region, known as the adrenal medulla.
The adrenal medullas play a crucial role in the body's response to stress and are primarily responsible for the production and secretion of two key hormones: epinephrine (also known as adrenaline) and norepinephrine. These hormones belong to a group called catecholamines and are released into the bloodstream in response to various stressful situations.
Epinephrine and norepinephrine have wide-ranging effects throughout the body, serving to enhance the body's physiological response to stressors. They increase heart rate, elevate blood pressure, and promote the dilation of blood vessels in order to deliver oxygen and nutrients to muscles and organs. Additionally, these hormones also stimulate the breakdown of glycogen (stored glucose) into glucose, providing a rapid source of energy to fuel the body's response to stress.
Overall, the adrenal medullas, through the production and release of epinephrine and norepinephrine, are vital in coordinating the body's fight-or-flight response to stress, helping to prepare the individual for immediate action when faced with a stressful or threatening situation.
Common Misspellings for ADRENAL MEDULLAS
- zdrenal medullas
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- adrrnal medullas
Etymology of ADRENAL MEDULLAS
The term "adrenal medulla" is derived from Latin and Greek roots.
1. "Adrenal" comes from the Latin word "ad" meaning "near" and "renes" meaning "kidneys". It refers to the paired endocrine glands located on top of the kidneys - the adrenal glands.
2. "Medulla" is derived from the Latin word for "marrow" or "pith". In this context, it refers to the innermost part of an organ. In the case of the adrenal glands, the medulla is the inner part of the gland.
Combining these roots, "adrenal medulla" refers to the innermost portion of the adrenal glands.
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