The eyelid closure reflex is a so-called polysynaptic foreign reflex that serves to protect the eyes from foreign body exposure and dehydration. The reflex can be triggered by tactile, visual, or auditory stimuli; startle can also activate the reflex. It always affects both eyes, even in the case of tactile or optical stimuli that occur … Eyelid Closure Reflex: Function, Tasks, Role & Diseases
The sneezing reflex is one of the protective reflexes and corresponds to a “fake” foreign reflex. Sneezing clears the upper airways of nasal secretions and foreign-body substances to ensure free breathing. Disturbances of the sneezing reflex occur mainly after damage to the nervous tissue involved peripherally and centrally, which includes the respiratory and gustatory centers … Sneezing Reflex: Function, Tasks, Role & Diseases
The anal reflex represents a foreign reflex at the external anal sphincter originating from spinal cord segments S3 to S5. It is an identification reflex for examining the transmission of stimuli in the superficial perineal nerve. An absent reflex may indicate dysfunction of corresponding nerve pathways. What is the anal reflex? The anal reflex characterizes … Anal Reflex: Function, Tasks, Role & Diseases
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
Swallowing consists of a voluntary preparatory phase, the swallowing reflex, and the oral, pharyngeal, and esophageal transport phases. Thus, the swallowing process is only partially controllable by volition. Swallowing disorders are dysphagias and may be neurological, psychological, or due to diseases of the structures involved. What is swallowing? Swallowing is a complex sequence of movements. … Swallowing: Function, Task & Diseases
A reflex is an involuntary, automatic response of a body part or organ to a stimulus. Within this, a foreign reflex describes a specific type of reflex and is also called a polysynaptic reflex. What is a foreign reflex? Many extraneous reflexes serve a protective purpose. For example, the swallowing reflex enables fluid and food … Foreign Reflex: Function, Tasks, Role & Diseases
The Piotrowski reflex is a foot reflex of the tibialis anterior muscle. It is physiologically present only weakly or not at all. Increased reflex movement may indicate neurologic damage in the pyramidal tracts of the spinal cord. What is the Piotrowski reflex? The Piotrowki reflex occurs after a blow to the distal end of the … Piotrowski Reflex: Function, Tasks, Role & Diseases
