PATHOLOGY

Detailed explanation-1: -A stimulus is anything that can trigger a physical or behavioral change. The plural of stimulus is stimuli. Stimuli can be external or internal. An example of external stimuli is your body responding to a medicine.

Detailed explanation-2: -A stimulus is anything that causes you to react, for example, the smell of food and your mouth watering. Responses are actions of the body: muscle contractions, gland secretions, or brain actions.

Detailed explanation-3: -excited by three types of stimuli-mechanical, thermal, and chemical; some endings respond primarily to one type of stimulation, whereas other endings can detect all types.

Detailed explanation-4: -all the components of an occurrence or experience that, taken as a whole, comprise a stimulus to which an organism responds. The term is used to highlight the complexity of behavior-arousing events that are unitary patterns comprising many elements (e.g., a concert, an athletic competition).