What Is a Paronychia (Nail Infection)? An infection that develops along the edge of the fingernail or toenail is called a paronychia (pear-ah-NIK-ee-ah). It is the most common hand infection and, if left untreated, can progress to a more severe infection of the entire finger or toe.
reflex action. the involuntary functioning or movement of any organ or body part in response to a particular stimulus. The function or action occurs immediately, without the involvement of the will or consciousness. reflex action.
Involuntary action. An involuntary action is one which occurs without the conscious choice of an organism. A reaction in response to a stimulus that is mediated via the reflex arc is known in physiology as a reflex, but the word reflex is also used informally for those involuntary responses that originate in the brain. Involuntary actions are opposite of voluntary actions that occur because of choice.