Glands & Hormones

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Sweat, also called perspiration, is a fluid produced by the sweat glands made up of water, minerals, lactate and urea. The minerals that make up sweat can vary from person to person depending on a number of factors. This fluid is used by the body to help cool it when heat builds up inside.

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  • What is the function of the mammillary bodies?

    Q: What is the function of the mammillary bodies?

    A: Although studies into the structures is causing some scientists to question human understanding of them, mammillary bodies primarily act as relays for impulses that travel through the brain. Additionally, the bodies appear to be very important in forming and recalling memories. Destruction or injury to these portions of the brain is often associated with amnesia.
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  • What organ produces estrogen?

    Q: What organ produces estrogen?

    A: Estrogen is produced in the egg follicle and interstitial cells of the ovaries, according to the Encyclopædia Britannica. The placenta is another major source of estrogen, with adrenal glands and male testes secreting small amounts of estrogen as well.
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  • What makes people cry?

    Q: What makes people cry?

    A: Crying is a release of built up emotions and is a way for the emotions to come out of the body in physical form. People generally cry when they are happy, sad, in awe of something or otherwise overwhelmed by a large amount of any emotion.
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  • What is the main function of testosterone?

    Q: What is the main function of testosterone?

    A: Testosterone is the primary male sex hormone, and its main function is to control male physical features. This hormone is created in the testes, and testosterone helps transform a boy into a man. Testosterone deepens the voice, builds muscle, strengthens bones, increases penis size and produces body hair, such as facial hair and pubic hair. Women also produce testosterone; however, women produce the hormone in much smaller amounts.
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  • How does sweat cool you down?

    Q: How does sweat cool you down?

    A: Sweat uses evaporative cooling to maintain body temperature. As liquids evaporate, they shed molecules into the air. The liquid changes into a gas, drawing heat from the liquid. The process draws heat from the body. Evaporation also cools the remaining liquid because faster-moving hot molecules are more likely to escape into the air, according to HowStuffworks.
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  • How do sweat glands regulate body temperature?

    Q: How do sweat glands regulate body temperature?

    A: According to the Encyclopaedia Britannica, sweat glands regulate body temperature by secreting water onto the surface of the skin where heat is then removed by evaporation. There are two types of sweat glands found only in mammals, the eccrine sweat glands and the apocrine sweat glands. The eccrine sweat glands are controlled by the sympathetic nervous system and are responsible for regulating body temperature.
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  • How many glands does the human body have?

    Q: How many glands does the human body have?

    A: The human body contains as many as nine ductless glands and five ducted glands, depending on gender and physiology. These 14 major glands are essential for conducting a wide range of key biological processes.
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  • How do you speed up your thyroid?

    Q: How do you speed up your thyroid?

    A: According to The Dr. Oz Show, speeding up the metabolism can be done by eating foods rich in iodine and avoiding foods known as goitrogens, which slow down the metabolism. Working out every day and enhancing thyroid function with supplements also helps to increase the thyroid function.
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  • What results from increased insulin?

    Q: What results from increased insulin?

    A: According to Web MD, consequences of having too much insulin circulating in the bloodstream include hypoglycemia or low blood sugar, dizziness, shakiness, sweating and irritability. In severe cases, increased levels of insulin cause fainting and unconsciousness, seizures and coma. Severely elevated insulin levels are most often experienced by diabetic patients who overdose on their insulin injections.
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  • Why is the endocrine system important?

    Q: Why is the endocrine system important?

    A: According to TeensHealth, the endocrine system is important because it regulates tissue function, mood, metabolism, growth and development, sexual function and reproductive processes. It influences nearly all cells, organs and functions of the human body. It is responsible for body processes that occur slowly, such as cell growth.
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  • What causes sweating under the arms?

    Q: What causes sweating under the arms?

    A: The human body contains two types of sweat glands: apocrine and eccrine. Apocrine glands are found in the armpit and the groin and increase sweat production in response to emotion, stress and hormones. Eccrine glands are found all over the body and secrete sweat through pores directly onto the skin's surface, cooling the body through evaporation. Both apocrine and eccrine glands cause underarm sweating.
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  • Where are the lymph nodes located?

    Q: Where are the lymph nodes located?

    A: There are hundreds of lymph nodes throughout the human body, mainly located in the head and neck region according to Mayo Clinic. However, lymph nodes are also found in the arms, legs, abdomen and groin area of the body.
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  • What hormone does the thymus gland produce?

    Q: What hormone does the thymus gland produce?

    A: The thymus gland produces the hormone Thymosin, which stimulates the production of antibodies. The Thymus also creates T-lymphocytes, which are white blood cells used to combat infection and abnormal cells, and Thymopoietin, which is a protein present in mRNA.
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  • What is the largest gland in the human body?

    Q: What is the largest gland in the human body?

    A: The liver is the largest gland in the human body. It is also an essential organ of the digestive system and has a wide array of functions.
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  • Q: Why do people sweat?

    A: Humans have a fairly rare ability to sweat, which allows them to excrete a salty liquid in order to cool the skin. This is essential to sustain endurance activities without overheating.
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  • Q: What is the white stuff on my tonsils?

    A: According to WebMD, white spots on the tonsils can indicate strep throat, an infection caused by streptococcus bacteria. Strep throat symptoms tend to come on strong and are typically more severe than sore throat symptoms that accompany a cold or flu. Additional symptoms include inflamed tonsils, loss of appetite and fever. Strep throat is diagnosed through rapid testing and treated with antibiotics.
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  • Q: Where is the pituitary gland located?

    A: The pituitary gland is a small structure that is located at the base of the posterior brain. It is directly below the hypothalamus and is attached to the hypothalamus by nerve fibers.
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  • Q: What are the glands in the back of the head?

    A: According to MedlinePlus, the glands in the back of the head are referred to as lymph nodes and are responsible for aiding the body in fighting illnesses and infections. Lymph nodes are also present behind both ears and run down each side of the neck.
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  • Q: What does adrenaline do?

    A: Adrenaline, also known as epinephrine, primarily boosts the heart rate, raises blood pressure, expands the lung air passages and dilates the pupil in the eye. It acts on various kinds of cells and generates numerous actions to prepare the body to respond vigorously during stressful times.
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  • Q: What are pancreatic nodules?

    A: Nodules are growths or raised lumps made up of inflamed tissue and occasionally fluid, according to Healthline.com. Nodules form on organs such as the pancreas and are usually not cancerous, although sometimes they may be a sign of an underlying health condition.
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  • Q: What does the prostate gland do?

    A: The prostate gland secretes fluid that provides nutrients for sperm. WebMD describes the gland as walnut-size and resting directly in front of the colon. The urethra passes straight through the prostate, which allows it to discharge fluid directly into the passing rush of sperm.
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