Five Nerves In Your Hands You Should Know About

The fingertips are one of the areas in the body with the most nerves. In this article, you can discover five nerves in the hands that you should know about.
Five nerves in the hands you should know about

Nerves in the hands are an absolute miracle! The fingertips are one of the areas in the body with the most nerves. This is why they are the primary source of tactile information.

The primary nerves in the hands

For didactic reasons, the fists in the hands are usually divided into two groups: those that dominate the upper hand and those that are in the palm. However, they are not separated. Instead, they form a interconnected network of nerves.

Nerves in the hands are responsible for conveying sensory information to the brain and contributing to the movement of hands, fingers and arms. Below we will explain five of the most important of them.

1. Nervous medianus

Nerve

The median nerve is a sensorimotor nerve. It enters the muscles of the forearm and palm. It consists of two parts: internal and external. The external division of this nerve leads to the palmar digital branch of the first finger. It also leads to the outer palmar digital nerve in the other finger.

Meanwhile, the internal division in the inner palmar digital nerve results in the other finger. Likewise, it leads to the external and internal palmar digital nerve in the third finger and the external palmar digital nerve in the fourth finger. It is responsible for the feeling in the outer half of the palm.

The median nerve passes through the flexor carpi radialis, palmaris longus and flexor digitorum superficialis. Due to its location, it may suffer from captures at various points.

2. The ulnar nerve: One of the nerves in the hands that you should know

The ulnar nerve is defined as a mixed nerve. This means that it combines motor and sensory fibers. It has a superficial branch which is supported on the hook by the root of the wrist.

It supplies palmaris brevis and provides digital branches to the one and a half medial fingers. It also supplies the third and fourth lumbar muscles and all the interosseous muscles of the palm of the back of the hand. This nerve enters only two muscles of the forearm: the flexor carpi ulnaris and the medial half of the flexor digitorum profundus.

It goes mostly into the muscles of the hand. It is responsible for the hypersensitivity of the skin in the ulna half of the palm and the back of the hand. It is also in the fourth and fifth fingers.

3. The radial nerve

Person shows nerves in the hands

One of the most relevant nerves in the hands is the radial nerve. It sits in the palm of your hand. It goes through the back of the hand, the top of the thumb, forefinger, middle finger and the back of the ring finger except at the nail.

This nerve is a sensory-motor nerve. It is primarily involved in the movements where one stretches the elbow, wrist and fingers out. This also applies to supination of the forearm. In other words, it is when the area rotates outward and inward.

It goes through several muscles including the triceps. There are also the upper muscles of the arms (triceps brachii and anconeus) and the outer extensor muscles of the wrist and hand. In addition, it is the long head, medial head and lateral head of the triceps brachii muscles.

4. Radial cutaneous nerve

It sits on top of the hand. This nerve passes through the aponeurosis of the forearm. It is the layer of tendons that sits in this area. It goes under the brachioradialis tendon. It then meets with the radial movement tendons of the elbow.

The radial cutaneous nerve passes through the thumb and the first phalanx of the index finger. It also passes through the first phalanx of the third finger and the back of the hand.

5. Ulnar cutaneous nerve

Massage of nerves in the hands

It corresponds to the upper branch of the ulnar nerve. It basically goes through the inner part of the third finger and the edge of the nail on the fourth finger on the inner part. Likewise, it also passes through the inner and outer edge of the fifth finger.

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