Thumb Anatomy Nerves at Anatomy

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Thumb Anatomy Nerves. These nerves carry signals from the brain to the muscles that move the arm, hand, fingers, and thumb. The ulnar nerves provides motor supply to the following:

Cutaneous innervation of the hand. Download Scientific
Cutaneous innervation of the hand. Download Scientific from www.researchgate.net

The palmar digital nerves to the thumb were constant in position and course, with a short lateral cutaneous branch from the radial palmar digital nerve in 30 per cent of cases. These nerves carry signals from the brain to the muscles that move the arm, hand, fingers, and thumb. These nerves control the muscles of the forearm and hand and give us the sensations of touch, temperature, and pain.

Cutaneous innervation of the hand. Download Scientific

The nerves also carry signals back to the brain about sensations such as touch, pain, and temperature. One of the six most relevant hand nerves is the radial nerve. The ulnar nerve is a terminal branch of the medial cord of the brachial plexus that contains fibers of c8 and t1 spinal nerves. The palmar digital nerves to the index finger had a variable pattern, the commonest arrangement, well described in gray's anatomy, occurring in 74 per cent of cases.