A reflex action follows this general sequence and does not involve the conscious part of the brain. This is why the response is so fast. Receptor in the skin detects a stimulus (the change in ...

The Semmelweis reflex occurs when novel ideas are rejected because they challenge existing beliefs. Read on to see how this ...

A simple reflex action happens if we accidentally touch something hot. We rapidly move our hand away. This is called the pain withdrawal reflex. The diagram shows the reflex arc involved.