Neurotransmitters are chemical messengers in the body. Their job is to transmit signals from nerve cells to target cells. These target cells may be in muscles, glands, or other nerves. The brain needs neurotransmitters to regulate many necessary functions, including: heart rate breathing sleep cycles digestion mood concentration appetite muscle movement The nervous system controls the body’s organs, psychological functions, and physical functions. Nerve cells, also known as n

Ulnar nerve entrapment at the elbow, also known as cubital tunnel syndrome, is a common sports injury in throwing and racket sports that require repetitive elbow flexion and extension combined with ulnar and radial deviation of the wrist. String musicians, such as guitar, bass and violin players, also get this injury, usually on the fret hand, as the fingers and wrist flexor muscles are used to hold the strings. In a position of full forearm supination and elbow and wrist fle