Marie-Foy Reflex

The Marie-Foy reflex is a physiological reflex that was discovered by French neurologists Marie and Foix in 1891. This reflex is named after the two scientists who discovered it, and is one of the most important reflexes in human physiology.

The Marie-Foy reflex is a reaction to stretching of muscles and tendons. When a muscle is stretched, it sends a signal to the brain through the nerves, which causes other muscles near the stretched muscle to contract. This happens because the brain interprets the stretch as a threat and tries to protect itself.

This reflex is important for human health as it helps maintain balance and coordination of movements. It also plays an important role in learning new movements and in recovery from injury.

However, the Marie-Foy reflex can be impaired in some diseases, such as multiple sclerosis or Parkinson's disease. In such cases, this reflex can become one of the first signs of the disease.

Overall, the Marie-Foy reflex is an important physiological mechanism that helps us maintain balance and move correctly. It can be used to diagnose and treat certain diseases, as well as improve physical fitness and coordination.

Marine-Louise Foix (Marie Louise Claude Argille Foix; January 16, 1878 - May 26, 1969) was a French neurologist, one of the first researchers of higher brain functions in neurology. Husband and colleague of Pierre Marie, wife of Louis Bédéard.

Marina Foix was born in Besançon, after graduating from medical school and 6 years of work as a nurse, she married psychiatrist and anatomist Pierre Marie. Pierre had a difficult character. He did not support the theory of female medical primacy and sometimes became aggressive. So they had a complicated relationship. Nevertheless, they began active work together and soon showed the world a new view of pathology: the occurrence of a disease, as well as successful treatment, depends on many factors. Among other things, Marina was interested in the physics and chemistry of nervous tissue. She was the first to describe in detail the structure of nerve cells, opening the way for subsequent studies of the cytoplasm and myelin of neurons and nerve fibers.

She showed that the long fibers connecting the cerebral cortex with opposite parts of the body form giant bundles along their entire length containing thousands of fibers. These connections between nerve centers became known as myelin “wires.” Later it turned out that the transversely strung ends of the myelin-dislocated fibers were twisted into spirals, which turned out to be bundles of pus and calcium. Finally, in subsequent years, it became clear that myelin not only surrounds the conductive nerves, but also covers the outer surface of the ependyma of the central canal of the spinal cord along with glial cells. In Marina’s time, these facts were of great importance for science. This meant that nervous tissue was much more complex than previously thought. To study the morphology and physiology of nervous tissue, Marina made a radical proposal. In 1915, she described the striatal system, consisting of three interconnected pairs of nuclei: the solitary nucleus - the intraparietal nucleus, the spongiosa nucleus and the substantia nigra. She also showed that fibers from the nigra nucleus of the brain are located in the right and left medulla oblongata neurons to the unimotor neuron instead of the vagus nerve tract. Her description of the motor system was not published until 1935, and her chemical description of the sympathetic system even later.

Marie-Fouad Reflexa is a famous French neuropathologist and neurosurgeon who made a huge contribution to the development of medical science. He was born in 1873 in Bordeaux, France, and began his career as a medical assistant at St-Nicolas Hospital. In 1900, he received his doctorate in medicine and ophthalmology from the Medical School in Paris.

Reflex dedicated his life to the study of diseases of the nervous system and their treatment. He has conducted a number of studies related to brain diseases, including polio, Parkinson's disease and Alzheimer's disease. To him