WHAT IS A PARONYCHIA. This is an infected ingrown nail. This is generally the result of an ingrown nail piercing the surrounding flesh, bacteria gets into the opening and it becomes infected.
Medical Definition of REFLEX ARC. : the complete nervous path that is involved in a reflex.eflex arc. noun. : the complete nervous path that is involved in a reflex.
Reflex. A reflex action, differently known as a reflex, is an involuntary and nearly instantaneous movement in response to a stimulus. Some people use the term reflex to mean a behavior that is mediated via the reflex arc; this does not apply to casual uses of the term 'reflex'.