AP PSYCHOLOGY

Detailed explanation-1: -WASHINGTON-Facial expressions have been called the “universal language of emotion, ” but people from different cultures perceive happy, sad or angry facial expressions in unique ways, according to new research published by the American Psychological Association.

Detailed explanation-2: -Human facial expressions are one of the most important non-verbal ways we communicate. With 43 different muscles, our faces are capable of making more than 10, 000 expressions, many of them tracing back to our primitive roots.

Detailed explanation-3: -They are caused by the movement of muscles that connect to the skin and fascia in the face. These muscles move the skin, creating lines and folds and causing the movement of facial features, such as the mouth and eyebrows. These muscles develop from the second pharyngeal arch in the embryo.

Detailed explanation-4: -Facial expressions are used by humans to convey various types of meaning in various contexts.