List of Partners vendors. You may be surprised to learn that the composition of our body fluids is quite complex. With respect to body fluids, form follows function. Our body synthesizes these fluids to meet our physical, emotional, and metabolic needs. With that, let's take a closer look at what the following body fluids are made of sweat, cerebrospinal fluid CSF , blood, saliva, tears, urine, semen, and breast milk.
Sweating is a means of thermoregulation—a way that we cool ourselves. Sweat evaporates off the surface of our skin and cools our bodies. Why don't you sweat? Why do you sweat too much? There is variability in how much people sweat. Some people sweat less, and some people sweat more. Factors that can affect how much you sweat include genetics, gender, environment, and fitness level. Here are some general facts about sweating:.
Hyperhidrosis can arise secondary to other conditions, such as hyperthyroidism , heart disease, cancer, and carcinoid syndrome. Hyperhidrosis is an uncomfortable and sometimes embarrassing condition. If you suspect that you have hyperhidrosis, please meet with your physician.
There are treatment options available, such as antiperspirants, medications, Botox, and surgery to remove excess sweat glands. The composition of sweat depends on many factors, including fluid intake, ambient temperature, humidity, and hormonal activity as well as the type of sweat gland eccrine or apocrine.
In general terms, sweat contains the following:. Sweat produced by the eccrine glands, which are more superficial, has a faint smell. However, sweat produced by the deeper and larger apocrine sweat glands located in the armpit axilla and groin is smellier because it contains organic material derived from the decomposition of bacteria.
The salts in sweat give it a salty taste. The pH of sweat ranges between 4. Interestingly, research suggests that diet can affect sweat composition, too. People who consume more sodium have a higher concentration of sodium in their sweat.
Conversely, people who consume less sodium produce sweat that contains less sodium. Cerebrospinal fluid CSF , which bathes the brain and spinal cord, is a clear and colorless fluid, which has numerous functions.
First, it provides nutrients to the brain and spinal cord. Second, it eliminates waste products from the central nervous system. And third, it cushions and protects the central nervous system. CSF is produced by the choroid plexus. The choroid plexus is a network of cells located in the brain ventricles and is rich in blood vessels. A small amount of CSF is derived from the blood-brain barrier.
CSF is made up of several vitamins, ions i. Blood is a fluid that circulates through the heart and blood vessels think arteries and veins. It carries nutrition and oxygen throughout the body. It consists of:. White blood cells , red blood cells , and erythrocytes all originate from the bone marrow.
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You may be able to find more information about this and similar content at piano. Advertisement - Continue Reading Below. More From News. Salivary and tear fluid are required for the proper function of the epithelial layer from which they are secreted. The physiological function of sweat is the elimination of excess heat. The products of the three glandulas can be used to measure indicators either of glandula or of non-glandular diseases.
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