What is the patellar tendon reflex? The patellar tendon reflex (PSR) or “knee-cap reflex” is a reflex of its own that is frequently used in everyday clinical practice. This reflex is triggered by a light blow with the reflex hammer on the ligamentum patellae, a broad and strong ligament just below the patella, which represents … Patellar Tendon Reflex
Segments of the spinal column In humans, the sensitive neurons (afferences) move to the lumbar segments (lumbar vertebrae) L2-L4, in smaller animals to L3-L6. There the excitation is switched to the motor neurons (efferences) via one synapse each. These neurons pass through the plexus lumbalis and back to the muscle in the femoral nerve, where … Segments of the spinal column | Patellar Tendon Reflex
Definition Reflexes are uncontrollable, fast and always the same reaction to certain stimuli. Reflexes are mediated by our nervous system, consisting of nerve fibers that communicate with each other via so-called synapses. A reflex always involves a sensor/receptor on which the stimulus acts. Also always involved is an effector, on which the reflex response takes … Reflexes
Task of the reflexes Reflexes are reactions of the body to external stimuli that occur immediately and do not require any special control or readiness. This is possible as quickly as possible because the reflexes are based on a simple circuitry that directly causes a reaction to a stimulus. The strength and duration of the … Task of the reflexes | Reflexes
Reflexes in babies Newborn children and infants have a variety of reflexes that differ from those of an adult due to their different life situation. Infants move almost exclusively reflexively. This is helpful because they do not yet have the motor skills to maintain their balance, for example. Thus, these reflexes serve, among other things, … Reflexes in babies | Reflexes
What reflexes are there on the leg? Four reflexes are also normally tested on the leg. Patellar tendon reflex: the examiner taps on the tendon, which can be reached slightly below the patella, when the legs are slightly elevated. This stretches the leg in the knee joint. Adductor reflex: is triggered by tapping the leg … What reflexes are there on the leg? | Reflexes
What reflexes are there on the arm? You can trigger different reflexes on your arm. The starting position is the patient in the supine position, who places his arms loosely on the groin. As a rule, the following four are tested: Biceps tendon reflex: in the biceps tendon reflex, one of the examiner’s fingers is … What reflexes are there on the arm? | Reflexes
What is reflex epilepsy? Reflex epilepsy is a rather rare disease of the brain, in which certain signals or stimuli are reacted to with a seizure. These stimuli are very differently pronounced, but they are often processes that place a particularly high strain on the brain, i.e. complex performances. Often visual stimuli are the triggers … What is reflex epilepsy? | Reflexes
