Facial nerve paralysis. Facial nerve paralysis most commonly causes a unilateral, but sometimes bilateral, paralysis of the muscles responsible for facial expression. Patients often present unable to move the lip or blink and with a droopy ear and severe ptyalism.
The Fourth World is an extension of the Three-World Model, used variably to refer to. Sub-populations socially excluded from global society; Hunter-gatherer, nomadic, pastoral, and some subsistence farming peoples living beyond the modern industrial norm.
In present-day English, the term Third World is used in reference to the developing countries of Asia, Africa and Latin America[1]. The term usually suggests poverty and low level of industrial development and thus it is the opposite of the term developed nations.