ANATOMY

Detailed explanation-1: -This quick response is called a reflex, and reflexes occur without conscious thinking or planning, meaning the brain is not involved in them.

Detailed explanation-2: -In a two-neuron arc, simple reflexes are prompt, short-lived, and automatic and involve only a part of the body. Examples of simple reflexes are the contraction of a muscle in response to stretching, the blink of the eye when the cornea is touched, and salivation at the sight of food.

Detailed explanation-3: -Reflexes are faster than conscious thought because they involve fewer pathways of travel and information from a reflex does not need to travel to the brain.

Detailed explanation-4: -In a reflex action, the brain plays no part. The spinal cord, which reacts without thinking about how to respond to stimuli, is in charge of these automatic actions. It elicits no meaningful response in the brain.