A pheochromocytoma is an adrenal gland tumor located in the center (medulla) of the adrenal gland. It causes the adrenal gland to produce too much adrenaline (epinephrine) and noradrenaline (norepinephrine). These tumors are usually benign, but...
The adrenal glands produce the hormone norepinephrine, a potent form of the "fight or flight" hormone epinephrine. Tumors of the adrenal glands called pheochromocytomas produce abnormally high levels of norepinephrine. These tumors can occur...
The paired adrenal glands, located atop the kidneys, secrete hormones that influence blood pressure, including aldosterone and epinephrine. Noncancerous and cancerous adrenal gland tumors that produce excess aldosterone or epinephrine typically...
Norepinephrine is a neurotransmitter, or a chemical released by the nerves to stimulate cells. Sometimes, norepinephrine is recycled. Other times, it is broken down by enzymes and its products are excreted. Metanephrine is one of the products....
Pheochromocytoma, hyperaldosteronism, virilization and Cushing's syndrome are diseases associated with hypersecretion of adrenal hormones. The adrenal gland produces hormones such as testosterone, cortisol and epinephrine. Adrenal diseases related...
Hormones are chemicals that regulate several activities in the body. They are made in and released into the bloodstream by endocrine glands. The major endocrine glands include the thyroid, pituitary and adrenal. The adrenal glands secrete several...
The paired adrenal glands secrete several hormones that help regulate diverse actions in several body systems. The outer region of the gland, known as the adrenal cortex, produces aldosterone, cortisol and androgens, or male sex hormones. The...
Anxiety, nervousness, fearfulness or worry affects everyone at some point in their lives. Anxiety occurs during times of stress, such as when taking an important test or when entering an unfamiliar location. In these situations anxiety increases...
The adrenal glands, two small triangle-shaped glands, reside just above each kidney. The adrenal glands consist of two sections: the outer portion known as the adrenal cortex, and the inner portion known as the adrenal medulla. The adrenal cortex...
Often the point of exercise is to get your heart rate up; however, you need to keep it within safe limits. Letting your heart rate get too high for too long can harm your body and make you feel nauseous. Nausea during exercise can also happen...
Sweating is a normal response by the body to cool itself down and maintain a normal temperature. Sweating occurs naturally as a response to increased heat, exercise or stressful situations. When excessive sweating occurs without a trigger, it can...
The adrenal glands secrete hormones such as testosterone, estrogen, aldosterone and catecholamines. The adrenal gland is made up of an outer cortex and an inner medulla, which secrete distinct hormones, according to the National Cancer Institute....
The adrenal glands, also known as the suprarenal glands, are small hormone-producing organs located on top of each kidney. The adrenal glands produce several hormones, including adrenalin, cortisol and aldosterone. Adrenal gland enlargement is...
The adrenal glands are small hormone-producing structures that sit on top of the kidneys. These glands secrete several hormones, including aldosterone, cortisol and adrenalin, all of which affect blood pressure. An excessive level of any of these...
Hypertensive crisis refers to marked increase in blood pressure that may cause a stroke. Extremely high blood pressure, characterized by a systolic (top number) measurement of 180 millimeters of mercury and a diastolic (bottom number) pressure of...
Primary hypertension describes high blood pressure that occurs as a standalone medical condition. Most high blood pressure in adults is due to primary hypertension. However, high blood pressure can also occur as a complication of another medical...
Blood pressure refers to the force that blood exerts on the walls of the arteries as it passes through them. Hypertension or high blood pressure occurs when there is an increase in this force. The Mayo Clinic says that hypertension is classified...
There are two adrenal glands and two kidneys in the body. Each kidney has an adrenal gland located above it. Adrenal glands are endocrine glands that secrete several types of hormones into the bloodstream. They secrete hormones that affect several...
The adrenal gland is the body's production center for hormones such as aldosterone, cortisol and epinephrine. Along with the testes and ovaries, adrenal glands manufacture sex hormones. The adrenal gland has been described as two separate...
The adrenal glands produce a variety of different hormones from two functional regions of the gland, the adrenal cortex and the adrenal medulla. The primary hormones produced by the adrenal cortex include aldosterone, cortisol and androgenic...
Within the catecholamine family, dopamine is an essential neurotransmitter found in the limbic system of the brain. As the precursor to the neurohormones noradrenaline and adrenaline, dopamine is naturally increased in situations of stress and...
The adrenal glands, two glands located above each kidney, produce hormones that affect the storage and use of energy, blood volume, blood pressure, sex organs and stress responses. Tumors in the adrenal glands occur when the cells in either the...
A tumor occurs when cells grow abnormally and out of control, forming a mass. Any type of cell in the body can develop into a tumor. The adrenal glands, found just above the kidneys, produce hormones commonly referred to as the stress hormones. A...
High blood pressure (hypertension) is a serious medical condition characterized by repeated high blood pressure readings. One high reading doesn't mean someone has hypertension, but several high readings over time can indicate a problem. Several...
The human endocrine system consists of a network of glands responsible for the production of hormones. Hormones, defined as chemicals produced in one part of the body that act on other parts of the body, regulate nearly all bodily functions. The...
The adrenal glands are only 1 to 2-1/2 inches in length, but they affect many important bodily functions. The adrenal glands work within the endocrine system to produce hormones, which are chemicals produced in one part of the body that affect a...
Hormones are chemicals produced and secreted by endocrine glands. They are released directly into the bloodstream which then transports them to their target sites or organs. Once the hormones reach their target organs, they stimulate them to take...
The endocrine system includes a group of glands that produce hormones regulating most bodily functions. The adrenal glands, located just above each kidney, produce hormones that regulate development, growth, physical characteristics and stress...
Heart palpitations are relatively common and are described as a feeling of the heart "fluttering" in your chest. Many diseases present with a combination of heart palpitations and unintentional weight loss. In addition, some drugs -- both...
Adrenal gland cancers are rare cancers occurring in the endocrine tissue of the adrenal glands and are characterized by overproduction of adrenal gland hormones. Learn about the symptoms and treatment options in this video.