deep reflex examination

The response caused by stimulating the periosteum and tendon is a deep reflex examination performed by a deep sensory sensor. Clinically, it generally includes biceps reflex, triceps reflex, periosteal reflex, knee reflex, and tendon reflex. Try to relax as much as possible during the examination. Don't be too nervous and affect the results of the examination. At the same time, actively cooperate with the doctor's work. You can relax yourself before checking so that the inspection can proceed smoothly. Basic Information Specialist classification: neurological examination classification: neuroelectrophysiology Applicable gender: whether men and women apply fasting: not fasting Tips: Try to relax as much as possible, not too tight to affect the results. Normal value 1. The normal reaction of the biceps reflex is the contraction of the biceps brachii. 2. The normal reaction of the triceps reflex is the contraction of the triceps and the elbow joint. 3, the normal reaction of the periosteal reflex is forearm pronation, elbow flexion. 4, knee reflex normal reaction for the calf stretch. 5, the normal reaction of tendon reflex is contraction of the gastrocnemius muscle, and the foot is flexed to the face. Clinical significance Abnormal result 1, biceps reflex normal deep reflex is transmitted by the musculocutaneous nerve, through the cervical spinal cord 5 ~ 6, still transmitted by the musculocutaneous nerve. Abnormal biceps reflexes suggest that the reflex arc is damaged. 2. The reflection center of the reflex arc of the triceps reflex is at the neck 6-7, and is transmitted by the phrenic nerve. Abnormal triceps reflexes suggest that the above-mentioned reflex arc is damaged. 3, periosteal reflex inversion is a special reflection performance. As the contractile force of the active tendon becomes smaller, it spreads after stimulating the anterior horn of the afferent spinal cord, and at the same time causes contraction of the antagonist muscle; or due to the paralysis of the active muscle, causing the stretch reflex of the antagonist muscle. Found in the cervical spinal cord 5 ~ 6 lesions. 4, knee reflex weakening or disappearance is most common in the spinal cord or peripheral neuropathy, is one of the signs of lower motor neuron spasm, more common in myopathy, cerebellum and extra-vertebral disease. Hyperreflexia is a sign of upper motor neuron, seen in hyperthyroidism, tetanus, low-calcium convulsions, and excessive mental stress can also occur. 5, sputum reflexes are often accompanied by sputum sputum, suggesting pyramidal lesions. When the sciatic nerve is damaged, the lumbar disc is prolapsed, the sciatic neuritis, and the sacral nerve are paralyzed, the tendon reflex is weakened or disappeared. People who need to be examined: patients with musculoskeletal nerve damage, motor neuron spasm, sciatic nerve damage, lumbar disc herniation, sciatica, and sacral nerve palsy. Precautions Contraindications before inspection: You can relax yourself before you check, so that the inspection can proceed smoothly. Requirements for inspection: Try to relax as much as possible during the examination, not too tight to affect the results of the examination, and actively cooperate with the doctor's work. Inspection process 1. Biceps reflex: The patient's forearm elbow is 90 degrees, the palm is facing down, the examiner holds the elbow with his left hand, and the left thumb is placed on the biceps tendon, and the right hand holds the percussion hammer and slams the left thumb. The normal reaction is contraction of the biceps and rapid flexion of the forearm. The reflection center is 5 to 6 knots in the cervical spinal cord. 2, triceps reflex: the patient's upper arm abduction, forearm half flexion, the examiner's left hand to hold the patient's elbow joint, and then the percussion hammer directly slammed the triceps tendon above the olecranon, the reaction is triceps contraction, The forearms are slightly extended. The reflection center is 6 to 7 knots in the cervical spinal cord. 3, periosteal reflex: the patient's forearm half flexion and semi-rotation, the examiner used the percussion hammer to gently lick its styloid process. The normal reaction is the elbow flexion and the pronation of the forearm. The reflection center is 5 to 6 knots in the cervical spinal cord. 4, knee reflex: When the patient takes a seat, the calf is completely loose and drooping at right angles to the thigh. In the supine position, check with the left hand to hold up the two knee joints to make the calf flexion to 120 degrees, and then use the right hand to grasp the hammer to hit the quadriceps tendon. The normal reaction is for the calf to stretch. If the patient's spirit is too tight and can't be reflected, the patient can be buckled with both hands and pulled hard and tried again. The reflection center is 2 to 4 knots in the lumbar spine. 5, sputum reflex: When the patient takes the supine position, the hip and knee joints are slightly flexed, and the lower extremities take the external rotation position. The examiner uses the left hand to gently support the patient's sole, so that the foot is overstretched, and the right hand holds the percussion hammer to attack the Achilles tendon. . Normal anti-Qing is contraction of the gastrocnemius muscle, and the foot is flexed to the face. If the lying position cannot be measured, the patient can be squatted on the chair, the feet are suspended by the side of the chair, and then the Achilles tendon is smashed and the reaction is the same as before. The reflection center is 1 to 2 knots in the iliac pulp. Not suitable for the crowd Inappropriate population: Patients with disabilities in their limbs or injuries. Adverse reactions and risks Nothing.