Every human has two kidneys, one on the right side, and one on the left side, amidst the back, which are both secured by the rib cage. The kidneys channel the majority of the waste items from your blood and pass them into the pee. Your kidneys are likewise in charge of keeping things in your blood adjusted - corrosive, electrolytes, for example, sodium and potassium, sugars, and proteins.
The blood flow in kidneys is higher than the blood flow in heart, liver and brain.
Inside each kidney are right around a million nephrons. These are tiny filters that catch all of the stuff going through your blood. All of the waste from your blood goes out into your urine.
The kidneys keep the amount of fluid constant in your body. Adults have around 7-8 liters of blood, and this is constantly filtered by the kidneys, as much as 400 times per day! If someone is dehydrated (not drinking enough water), the kidneys will not make much urine until the person starts drinking again and their blood volume goes up.
Kidneys measure around 4.5 inches in length.
Kidneys are no bigger than a standard computer mouse or a cell phone.
Each individual kidney weighs around 4-6 ounces.
In case of new born human babies, the kidney to body weight ratio is 3 times the kidney to body weight ratio in adults.
If the kidneys aren't getting enough blood pressure, they can send a signal to the rest of your body to make the blood vessels smaller, which increases the pressure. This makes sure that blood can get to all parts of your body.
Each individual kidney consists of at least 1 million and up to 2 million nephrons. Nephrons are nothing but very tiny filters that are capable of filtering blood and eliminating the waste materials.
In a single hour, kidneys receive around 120 pints of blood.
Though the kidneys weigh on 0.5% of the entire body weight, they actually receive more arterial blood compared to other organs in body. Almost 25% of the blood pumped by the heart goes to the kidneys.
In case of adults, kidneys form only 0.5% of the entire body weight.
Exactly half of one single kidney is capable of doing the job that is performed by two kidneys together.
The kidneys also sense the amount of oxygen in the blood. If they aren't getting enough oxygen, they will make a hormone that sends a signal to your body to make more red blood cells, which are the cells in blood that carry oxygen.
Your body can work with only a single kidney. Sometimes people who don't have good kidneys can get a kidney donated to them - this usually comes from a family member. This way, both people will live with one kidney.
Vitamin D is a vitamin that is produced when you are exposed to sunlight by special cells in your skin. It isn't in a form your body can use though - the one made by your skin is processed by your liver. But, even that one can't be used by your body - your kidneys are responsible for activating the vitamin D!
If you have ever seen a kidney bean, then you know what the kidney is shaped like. Each kidney is about the size of a cellular phone, or a computer mouse.
The kidneys are connected to your bladder (a large sac that holds urine) by tubes called ureters. When your bladder is about half full, your brain gets a signal that you need to go to the bathroom. When you go pee, the urine leaves your bladder and out your body through another tube called the urethra.
Drugs like tobacco and alcohol make your kidneys work harder, and can even damage them. Stay away from drugs so your kidneys will be kept healthy.
Some kids don't have kidneys that work, and have to be on dialysis. This takes several hours a day for 3 days a week usually. Remember that even though they are on dialysis and their kidneys don't work, they are still kids and need friends, and fun. Try to be a good friend and spend time with them during their dialysis sessions if you can.