NERVUS RADIALIS Meaning and
Definition
-
Nervus Radialis, also known as the Radial Nerve, is a major peripheral nerve of the upper limb in vertebrates. It is one of the five main nerves originating from the brachial plexus and plays a critical role in providing sensory and motor innervation to the forearm, hand, and fingers. The Nervus Radialis arises from the posterior cord of the brachial plexus, specifically the fifth, sixth, seventh, and eighth cervical spinal nerves and the first thoracic spinal nerve.
Functionally, the Nervus Radialis is responsible for controlling the extensor muscles of the forearm and hand. It supplies motor fibers to the muscles that extend the wrist, fingers, and thumb, allowing movements such as straightening the elbow, lifting the wrist, opening the fingers, and spreading the thumb apart from the rest of the fingers. In addition to motor functions, it also carries sensory information from the back of the hand, thumb, and fingers, providing a sense of touch, temperature, and pain perception to these regions.
Injury or impairment of the Nervus Radialis can result in various clinical manifestations, depending on the specific location and extent of the damage. Some common conditions associated with Nervus Radialis dysfunction include wrist drop, decreased grip strength, reduced sensation on the dorsum of the hand, thumb weakness, and difficulty extending the forearm. Treatment typically involves addressing the underlying cause of the damage, physical therapy, and in severe cases, surgical intervention to repair or reconstruct the nerve.
-
Radial nerve, (1) musculospiral nerve, arises from the posterior cord of the brachial plexus of which it is practically the continuation; after emerging from the axilla it curves round the posterior surface of the humerus and passes down to the cubital fossa where it divides into its two terminal branches, the superficial ramus (radial nerve) which is sensory, and the deep ramus (posterior interosseous) which is motor; (2) ramus superficialis of the radial (musculospiral) nerve.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for NERVUS RADIALIS
- bervus radialis
- mervus radialis
- jervus radialis
- hervus radialis
- nwrvus radialis
- nsrvus radialis
- ndrvus radialis
- nrrvus radialis
- n4rvus radialis
- n3rvus radialis
- neevus radialis
- nedvus radialis
- nefvus radialis
- netvus radialis
- ne5vus radialis
- ne4vus radialis
- nercus radialis
- nerbus radialis
- nergus radialis
Etymology of NERVUS RADIALIS
The term "nervus radialis" is derived from Latin. Here's the breakdown of its etymology:
- Nervus: Latin for "nerve". It is derived from the Proto-Indo-European root "neər" meaning "to breathe" or "to live".
- Radialis: Latin for "of the radius". It is derived from the Latin word "radius", which refers to the forearm bone called the radius. The term "radialis" is used to describe something related to or coming from the radius bone.
Therefore, "nervus radialis" in Latin translates to "the radial nerve" in English, referring to the nerve that runs along or near the radius bone in the forearm.
Infographic
Add the infographic to your website:
