extensor pollicis brevis muscle strength test

The flexor hallucis extensor muscle strength test is a method to check whether the muscle has a degree of spasm and spasm. The main function of the extensor pollicis muscle is to straighten the first knuckle of the thumb and abduct the thumb. When the tendon is stretched, the thumb cannot be straightened and abducted. The thumb can not be straightened and abducted, and the thumb is flexed. It is a sign of paralysis of the phrenic nerve (derived from the cervical spinal cord 7-8 and the middle and lower trunk of the brachial plexus). Basic Information Specialist classification: neurological examination classification: physical examination Applicable gender: whether men and women apply fasting: not fasting Tips: Check your thumb before you can relax, without worrying too much about your condition. Normal value The thumb can stretch and abduct. Clinical significance Abnormal results: The main function of the extensor pollicis muscle is to straighten the first knuckle of the thumb and abduct the thumb. In this tendon, the thumb cannot be straightened and abducted, and the thumb is flexed, which is a sign of paralysis of the phrenic nerve (derived from the cervical spinal cord 7-8 and the brachial plexus and the posterior bundle). People who need to be examined: patients with short extensor tendon. Precautions Forbidden before examination: The thumb can be properly relaxed before the examination, without worrying too much about your condition. Requirements for inspection: Do not stretch excessively when the thumb is not straight and abducted. Inspection process The paralyzed patient straightens the first knuckle of the thumb, and the examiner gives the impedance to measure its muscle strength. Not suitable for the crowd A patient with a damaged or disabled thumb. Adverse reactions and risks Generally no adverse reactions.