Is this nerve responsible for your facial pain? Let's learn about the trigeminal nerve!

Imagine that when you are chewing food or just washing your face, you suddenly feel a sharp pain like an electric shock on one side of your face. Or you feel like some parts of your face are numb. The cause of such things can be a problem with a very important nerve inside our head. Today we are talking about this 'Trigeminal Nerve', which gives sensation to our face and helps us chew food.

Simply put, what is the trigeminal nerve?

Simply put, the trigeminal nerve is one of the 12 main pairs of nerves inside our head, or skull. It is also called the fifth cranial nerve. Just like the branches of a tree, this nerve divides into three main parts and spreads throughout our face. There is one trigeminal nerve on the right side of our face, and another on the left, so there are two of them.

It is the largest nerve in our skull. It performs two main functions:

1. Sensory function: This nerve transmits everything you feel in your face, forehead, eyes, nose, lips, teeth, and gums, such as touch, pain, heat, and cold, to the brain. It's like a telephone line that carries messages from your face to your brain.

2. Motor function: This nerve also tells the muscles in your jaw to move when you chew food, "Okay, chew now."

Many people don't think much about this nerve, but if you or someone you know has a condition like ``Trigeminal Neuralgia'', which is a severe pain in the face, then you realize how important this nerve is.

What are the three main branches of this nerve and their functions?

As we mentioned earlier, this nerve divides into three main branches. To make this easier to understand, let's look at this table.

Where exactly is this nerve located in our head?

The process is a bit complicated, but let's keep it simple.

This nerve's journey begins at four junctions in the brainstem, where nerve cells gather. Three of these are involved in sensory messages and one in motor messages.

These sensory cells come together to form one large nerve root. This comes out of the brainstem near the ``Pons``. After coming out, this nerve root becomes a bundle of nerve cells called the ``Trigeminal Ganglion`` . This is located in front of our ears, near the cheek, inside the skull.

Just like a railway junction where three train tracks split off, it is from this ganglion that the three main branches we talked about earlier (occipital, maxillary, and submaxillary) split off and go to different parts of the face.

What conditions affect the trigeminal nerve?

The functioning of this nerve can be disrupted for various reasons.

• Head injuries or other brain diseases.
• Nerve compression due to a nearby blood vessel, tumor, or swelling .
• Some infections, especially the herpes zoster virus that causes shingles, can cause the nerve to swell.
• Microvascular disease caused by diseases such as diabetes.
• Some autoimmune conditions .
• Accidental nerve damage during brain, facial, or dental surgery .

These are some of the main medical conditions that can occur due to these reasons:

Trigeminal Neuralgia

This is the most common condition associated with this nerve. It causes a severe, shooting pain on one side of the face that can last from a few seconds to a few minutes. It is usually caused by a blood vessel pressing on this nerve near the brainstem.

Trigeminal Neuropathy

This means that there is some damage to the trigeminal nerve. This can cause facial numbness, pain, or unusual sensations (paresthesia) like ants running around.

Cluster Headache

This is a very severe headache that occurs on one side of the head. It is believed that this headache may be caused by some irritation or swelling of the trigeminal nerve.

Wallenberg Syndrome

This condition is caused by a blockage in a blood vessel that supplies blood to the brainstem (e.g., stroke). This can also affect the function of the trigeminal nerve, causing symptoms such as difficulty swallowing and dizziness.

Treatment depends on the underlying cause. Some minor injuries heal on their own over time. In some cases, your doctor may recommend medication or surgery.

What are the symptoms of nerve damage?

Because this nerve is so large and performs so many different functions, the symptoms that occur when it is damaged can vary greatly. Depending on where the damage occurs, it may only affect a small area of ​​the gum, or it may affect one side of the entire face.

The main features that can be seen are:

• A tingling or prickling sensation in the face .
• A sharp, unbearable facial pain .
• Corneal abrasions (because you can't feel anything when it hits your eye).
• Vision problems .
• Pain, tingling, or weakness in the jaw muscles .
• Difficulty chewing, speaking, or swallowing .

What should we do to keep this important nerve healthy?

Of course, we can't always prevent damage to this nerve. For example, we can't control something like an accident. But there are a few things we can do to keep our entire nervous system healthy. Those things indirectly help the trigeminal nerve.

• Eat nutritious foods, especially those that contain vitamin B12 and vitamin D, which are important for nerve health.
• If you have chronic diseases like diabetes or high blood pressure, control them well. These diseases can damage the nerves.
• If you smoke, ask for help to quit. Smoking reduces blood flow to the nerves.
• Maintain a healthy weight that suits you.
• Reduce stress. Calm your mind through things like meditation and walking.

We owe every sensation we experience on our face, every opportunity to chew and savor a delicious meal, to the trigeminal nerve. Therefore, if you experience unusual facial pain, numbness, or discomfort in your jaw, remember that it could be due to a problem with this nerve and seek medical advice immediately.