ANATOMY

Detailed explanation-1: -Stimuli are changes in the environment to which living organisms respond. External stimuli such as heat, light, touch, sound, smell, taste, water, and chemicals cause living organisms to respond. For example, if a man unintentionally touches a really hot object, he swiftly draws his hand away from it.

Detailed explanation-2: -A stimulus is a change in the environment (either external or internal) that is detected by a receptor. Receptors transform environmental stimuli into electrical nerve impulses. These impulses are then transmitted via neurons to the central nervous system where decision-making occurs.

Detailed explanation-3: -Each sense receptor responds to different inputs (electromagnetic, mechanical, chemical), transmitting them as signals that travel along nerve cells to the brain. The signals are then processed in the brain, resulting in immediate behaviors or memories.

Detailed explanation-4: -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. An example of internal stimuli is your vital signs changing due to a change in the body.