The ulnar nerve
One of the
three major nerves in the human arm. It starts in the neck and goes down the
inner side of the upper arm, beyond the elbow. It works on the sensory nerve
feeding of the hand, it provides the front arm with motor nerves to the
muscles, and the ulnar nerve works, also in controlling most of the small
muscles in the hand and helps with fine movements, and some muscles in the
forearm to make a strong fist. Then it branches off into many branches that
supply the skin of the palm. The fourth and fifth hand and finger.
The ulnar nerve
suffers many injuries, including:
-
Fracture
or dislocation of the elbow.
-
Arthritis
of the elbow.
-
Swelling
in the elbow joint.
-
An
abscess near the elbow joint.
-
Work
injuries or accidents.
Problems of
injury to the ulnar nerve
-
Weakness
in the hands
-
Pain
or numbness on the inner side of the hand
-
Weakness
of the fourth or fifth finger