Body Parts That Start With K

In this text we are going to talk about the parts of the body that start with the letter K.

There are only a few body parts that start with this letter.

Of course, we will start from the kidney that is undoubtedly one of the most important organs in the body.

Most Common Body Parts That Start With K


The first body part that we are going to mention is the kidney.

The kidney is a very important organ in the human body. It is actually one of the most important organs in the body.

We will explain you the structure of the kidney and its function.

First of all we have to say that kidneys are located deep in the abdomen and cannot be felt by touch.

In adults this organ is about 10-13 cm long and 6 cm wide.

Also, each kidney is about 4 cm thick and it weighs around 150-170 g.

The kidneys are arranged in the shape of beans and these organs are paired. People usually have two kidneys, but the body can also function well with only one of them.

The most important function of kidneys is to expel all harmful substances from the body and to cleanse the blood this way.

If there were no kidneys, dangerous substances would accumulate in the body, which could lead to fatal consequences.

This is exactly why the function of the kidney is very important.

We consume different foods and beverages every day. At the same time, we take in different amounts of water and minerals, so it is necessary to establish a balance in the body. That’s exactly what the kidneys do.

Thanks to the kidneys, toxins will be removed from your body and the balance of fluids, minerals, electrolytes, etc. will be restored.

It is of crucial importance for the functioning of our organism. For example, if the level of potassium in the body changes, it can negatively affect the function of the heart.

Likewise, the balance of calcium and phosphorus in the body must be maintained in order to keep teeth and bones healthy.

To repeat, the kidneys remove harmful substances from the body and leave only what is necessary for the normal functioning of the body. In this way, the kidneys create urine.

Therefore, when toxins and excess water are removed from the body, urine will be formed in the kidney. Urine continues its way through the ureters and bladder, and it is expelled through the urethra.

The urine created in the kidney flows through the ureters to the bladder. Ureters are hollow tubes about 25 cm long that consist of special muscles.

As we have said, the urine goes further into the bladder and stays in the bladder for some time.

The bladder can hold an average of 400 to 500 ml of urine. When the bladder is full we will feel the urge to urinate.

Urine is expelled through the urethra. The urethra is very short in women, and significantly longer in men.

We told you what the kidneys look like and what their basic function is. We showed you how urine flows on its way from the kidneys to the urethra.

It should be mentioned that one of the most important functions of the kidneys is the removal of excess fluid from the body.

The work of the kidneys is adapted so that only the necessary amount of water remains in the body, and all the waste comes out through urine.

However, when the kidneys do not function well and cannot perform their function, water accumulates in the body and causes swelling. At the same time, it can cause other health problems.

Another important function of the kidneys is maintaining normal blood pressure, as well as blood purification.

In fact, it is important to know that as much as a quarter of the blood that leaves the heart goes to the kidneys.

When the kidneys do not work well, toxins accumulate in the blood, and useful substances are expelled from the body through urine. It can cause serious chemical disturbances in the body and even death.

As you can see, the kidneys perform a very important function in the human body and if there is any disturbance in the functioning of the kidneys, it can lead to serious harm and even to death.

Therefore, it is important to regularly monitor and maintain kidney health.

Kidney function can be checked with the urine test or the chemical blood test. There are also various x-ray examinations that can be used to check the function of the kidneys and urinary tract.

Although the kidneys have very important functions in the human body, it is important to know that the body can function even if one kidney is removed.

This means that only one kidney is sufficient for the normal functioning of the body, but on the condition that it is completely healthy and functional.


The knee is one of the strongest and largest joints in the entire human body. The knee actually represents the connection between the thigh and the lower leg.

The structure of the knee is very complicated. The knee consists of three bones, and the surface of the knee joint is covered with a thin layer of cartilage.

Cartilage has the function of protecting the bones and allowing them to move more easily.

It is possible to bend and stretch the knee, as well as to rotate it slightly, vertically and horizontally.

In addition, the cartilage helps to preserve the strength of the knee itself.

We should certainly mention another cartilaginous structure located between the two knee bones and that is known as the meniscus.

The meniscus has the function of preventing two bones from touching each other when moving, running, jumping, etc.

In this way, the meniscus protects the ends of the bones from any damage during physical activities.

The knee joint contains many other structures that help protect the bones from damage and injury.

It is important to know that there are also tendons and ligaments in the knee. As we have already said, the structure of the knee is very complex.

Knee injuries are common and sometimes take a long time to heal. Knee pain can be very unpleasant and it is most often the result of injuries.

In addition, arthritis or other knee diseases may occur.

In the case of knee pain, the causes of the pain should first be investigated, and then adequate treatment should be given, because if knee pain is not treated in time, it can lead to serious complications.


There is one more part of the body that starts with the letter K and it is the knuckle that represents a joint on finger.

The knuckle is located on a finger, more precisely it is located on the place where the finger and the hand join each other and also where two finger bones (phalanges) join each other.

There are 3 knuckles on each finger and 2 knuckles on each thumb, which means that there are 14 knuckles on each hand.

Although the hand is a small part of the body, it contains a lot of bones, muscles and other structures that have important functions and that enable the movement of the hand itself.

A knuckle has also a very complex structure. Due to many muscles, ligaments and nerves knuckles are able to move.

There are many causes of knuckle pain, such as injuries, rheumatoid arthritis, osteoarthritis, infections, swollen tendons etc.

Sometimes there may be also ganglion cyst on the knuckle, which may be followed by a strong pain.

There are many ways to treat pain in knuckles. When we talk about home treatment we can suggest cold and hot compresses that you can put on the knuckle that is injured or inflamed.

In the case of knuckle pain you should avoid writing, typing and other similar activities where hands are included.

However, if the knuckle pain still exists or if it is being even worse, you should see a doctor.


You may have never heard of kisser, but it is the body part that you use every day. Actually, kisser is another word for the mouth.

This word is used in informal speech. As we all know, the mouth is the initial part of the digestive tract where the mechanical processing of food is carried out.

In other words, the mouth or oral cavity is the opening through which we eat and make sounds.

Other Body Parts That Start With K

Knee bones

Knee ligaments

Knee tendons


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