Brachioradialis reflex
Brachioradialis Reflex
The Brachioradialis reflex (pronunciation: brā′kē-ō-rā′dē-ā′lĭs rē′fleks) is a medical term used to describe a specific type of muscle reflex that is used in neurological examinations.
Etymology
The term "Brachioradialis" is derived from the Latin words "brachium" meaning "arm" and "radius" meaning "ray". The term "reflex" is derived from the Latin word "reflexus" meaning "bent back".
Definition
The Brachioradialis reflex is a deep tendon reflex that is elicited by striking the brachioradialis muscle with a reflex hammer, causing the muscle to contract. This reflex is used to assess the integrity of the radial nerve and the C5 and C6 spinal nerves.
Related Terms
- Deep tendon reflex: A response that is elicited when a tendon is tapped sharply, causing the muscle to contract.
- Brachioradialis muscle: A muscle of the forearm that flexes the forearm at the elbow.
- Radial nerve: A nerve in the human body that supplies the arm and hand.
- Spinal nerves: The nerves that emerge from the spinal cord.
Clinical Significance
The Brachioradialis reflex is used in clinical practice to assess the integrity of the nervous system. A normal response indicates that the radial nerve and the C5 and C6 spinal nerves are functioning properly. An abnormal response may indicate a neurological disorder such as a stroke, multiple sclerosis, or a spinal cord injury.
External links
- Medical encyclopedia article on Brachioradialis reflex
- Wikipedia's article - Brachioradialis reflex
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