Reflex Solar

Solar Reflex: Description, Mechanisms of Study and Clinical Application

The Solar reflex, also known as the epigastric reflex or Toma-Ru sign, is one of the reflexes that can be evoked when examining the abdomen. This reflex was first described in 1905 by the Japanese neurologist Toma-Ru, who discovered it in patients with acute appendicitis.

Mechanisms of the Solar Reflex

The Solar reflex is caused by stimulation of the skin of the abdomen in the epigastric zone. This causes contraction of the muscles of the anterior abdominal wall and elevation of the diaphragm. This occurs due to the stimulation of nerve fibers that pass through the solar plexus (plexus solans) towards the abdominal cavity and diaphragm.

Study and Clinical Application of the Solar Reflex

The Solar reflex can be caused when examining patients with various diseases of the abdominal cavity, such as appendicitis, cholecystitis, gastric ulcers and duodenitis. It may also be useful in assessing the function of the abdominal muscles and diaphragm in patients with paresis or paralysis.

Currently, the Solar reflex is not the main method of diagnosing or treating any diseases, but it can be used in combination with other examination methods to clarify the diagnosis and assess the patient's condition.

In conclusion, the Solar reflex is an interesting phenomenon that can be evoked during abdominal examination. However, its clinical use is currently limited and further research is needed to better understand this reflex and its possible application in the diagnosis and treatment of abdominal diseases.



The solar reflex (or solaris) is one of the human skin reflexes that is associated with the solar plexus. This reflex is part of the somatosensory system, which is responsible for sensory information received from the skin and muscles. The reflex is used to determine the condition of the spine and costal networks, as well as to assess the motor capabilities of patients with spinal cord injuries.

The history of the solar reflex began in the 19th century, when scientist Victor Kolby introduced it to study the nervous system of animals. In the experiment, the scientist stimulated the solar slit to cause a reflex response in animals. The scientist found that when the solar plexus was stimulated, the animal exhibited a visible spasm of eye movements and lengthening of the neck muscles.

Today, the solar reflex is more often used in neurology and neurosurgery to diagnose various diseases associated with the spine, spinal cord and peripheral nervous system. For example, a reflex study can help determine the complication of tumor diseases of the spine, damage to the spinal nerves, or to examine the presence of herniated discs.

To study the reflector, methods such as palpation of solar fissures, thoracoscopy, radiography, computed tomography and other diagnostic methods are used. The entire process does not require any special skills, but requires experienced professionals skilled in conducting such studies and interpreting their results.

Diagnostic studies of reflexors can be carried out using both visual and physical methods. For example, visual methods include observing the patient's eyes after stimulating the solar plexus through palpation or local application to various parts of the patient's body. And physical methods can include electrical, acoustic and magnetic stimulators and even simply the use of various sensors that can be attached to the patient's body.

After taking all the necessary indicators, their interpretation should be carried out by a qualified team of specialists in solar reflexes. Interpretation is very important for drawing up the most complete picture of the patient’s body condition and determining further actions to cure it.

When interpreting a reflex study, many factors must be taken into account, such as the patient's age, physiological condition, previous treatment and many other aspects. Diagnostics will be carried out individually for each patient. It should be noted that reflex studies are one of the tools in the arsenal of a medical specialist, and should be used in combination with other methods of diagnosing and treating patients. If the results of studying the reflectors are unsatisfactory, then additional research methods may be needed, such as microscopic analyses, ultrasound examinations, etc. However, the first step should be to inspect the reflexor.