2023-05-06 13:00:00
Written by
On 06.05.2023 at 03:00
Modified on 06.05.2023 at 3:00 p.m.
Half of us are made up of liquids (52% of a woman’s weight and 60% in a man), which digest, protect, nourish, purify…!
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Blood: 5 liters of blood circulates at any time in the body
This vital liquid is propelled by the heart at a speed of 30 cm/s at rest, and up to 3 m/s during violent effort. Plasma, the liquid part, constitutes half of the total blood volume. It circulates red blood cells (carrying oxygen throughout the body), white blood cells (sentinels of the immune system) and platelets (providing coagulation in the event of injury) in the vessels. The more oxygen the blood has, the brighter red it is. But the skin’s imperfect transparency filters out certain wavelengths of light passing through it and lets us see our blue veins.
Saliva: 75 cl of saliva produced per 24 hours
The salivary glands continuously secrete 0.4 ml of saliva per minute. A flow multiplied by 4 when chewing, especially acidic foods. To evacuate it, we swallow on average twice a minute (day and night).
Urine: 800 ml to 1.5 liters of urine produced per 24 hours
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An adult urinates on average 1 liter per twenty-four hours depending on the amount of water drunk. The bladder can contain up to 700 ml in men, 600 in women. But from 300 ml, the muscles of the bladder signal to the nervous system the urge to urinate. Normal urination empties the bladder in thirty seconds, continuously, without effort or pain.
Cerebrospinal fluid: 15 cl of cerebrospinal fluid circulates at all times in the body
The brain is bathed in this transparent liquid which absorbs shocks. Made up of 99% water, it is renewed every six to eight hours from the blood circulating in the cerebral ventricles.
Nasal mucus: 1 to 2 liters of nasal mucus produced per 24 hours
Snot is secreted every twenty minutes by glands in the mucous membrane of the nasal cavities to moisten the inspired air and filter impurities. This fluid is very rich in water but also contains salts and glycoproteins which give it its thick and sticky consistency, to better trap particles. The essential is not evacuated by the nose, we swallow it.
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Digestive juices: 7 to 10 liters of digestive juices produced per 24 hours
The first to act is the very acid gastric juice, secreted by the stomach in sealed vesicles so as not to digest its own cells. Liver, pancreas and gallbladder then each release their juice to dissolve and emulsify fats and sugars. The lining of the small intestine produces mucus which protects it from the acidity of the digested food bolus. Most of the water from the digestive juices is reabsorbed in the large intestine.
Breast milk: between 400 and 1100 ml of breast milk produced per 24 hours
Less white than cow’s milk because it is less rich in casein, its composition varies during the feeding (more water at the beginning to quench your thirst, more lipids at the end to bring satiety), during the day (milk from evening rich in prolactin for falling asleep) and with the age of the child.
Sweat: 0.5 to 1 liter
But in the event of intense effort or high heat, the more than 2 million sweat glands distributed on the surface of the body can sweat up to 10 liters in a day. This liquid for the evacuation of toxins is acidic and salty.
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Sperm: 2 to 5 ml
This is the average volume of an ejaculate, of which the 100 million spermatozoa represent approximately 20%, swimming in the liquid secreted by the seminal vesicles and the prostate. Initially viscous, it liquefies to facilitate gamete mobility. The more transparent it is, the less the sperm are concentrated there.
Tears: 2 ml of tears produced per 24 hours
To keep the eye’s protective film moist, the lacrimal glands produce 1.2 microlitres of tears per minute (98% water, 1% salt, 1% protein).
Vaginal secretions: 600 ml of vaginal secretions produced per 24 hours
Cervical mucus is the mucus secreted at the level of the cervix, abundant and liquid on the day of ovulation. Acid, it ensures self-cleaning of the vagina. Under the effect of sexual excitement, the vestibular glands located at the level of the vulva secrete a lubricating mucus that poetic and erotic literature calls love juice.
Lymph: 8 to 10 liters of lymph circulates at any time in the body
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This transparent to milky liquid is essential for the body’s defence, it transports immune cells from the organs that produce them (spleen, thymus, lymph nodes) to the rest of the body. It does not circulate under the effect of a pump like blood. It is the contraction of the muscles and the action of the valves, kinds of flaps in the vessels, which create pressure differences between the tissues and attract the lymph.
Amniotic fluid: 1 liter
This is the maximum volume observed at the end of the seventh month of pregnancy. It is mainly produced by the fetus itself (urine), but the latter exchanges more than 400 ml per hour with its mother, to ensure renewal and thus receive mineral salts and hormones involved in its proper development.
You may also be interested in:
⋙ Urination: how often should you empty your bladder in a 24 hour period?
⋙ Blood, sweat, tears… The secrets of our secretions
⋙ Saliva, sweat, urine… the unsuspected properties of our body
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#Blood #saliva #sperm.. #body
