MICROANATOMY

Detailed explanation-1: -A stimulus causes an action or response, like the ringing of your alarm clock if you didn’t sleep through it. Stimulus is a word often used in biology-something that causes a reaction in an organ or cell, for example.

Detailed explanation-2: -Stimulus is an event or any change in the external environment that evokes a specific functional reaction in an organ or tissue. stimulus can be internal or external. Sense organs, such as the ear, and sensory receptors, such as those in the skin, are sensitive to external stimuli such as sound and touch.

Detailed explanation-3: -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-4: -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-5: -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).