AP BIOLOGY

Detailed explanation-1: -Reflexes are automatic responses to harmful stimuli around us. These are executed by special pathways involving a sensory and a motor neuron. These reflex arcs bypass the brain and occur mostly in the spinal cord. Due to this, these actions are faster than typical movements and don’t require conscious control.

Detailed explanation-2: -In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.

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. Instead, a reflex arc occurs at the level of the spinal cord which makes travel time faster than when the brain is involved in the decision making.

Detailed explanation-4: -Nervous system-Reflexes Most reflexes don’t have to travel up to your brain to be processed, which is why they take place so quickly. A reflex action often involves a very simple nervous pathway called a reflex arc.

Detailed explanation-5: -Reflexes are unconscious responses, which means they are automatic and do not require the brain to create the action. There are many different types of reflexes, but the most basic is called a simple reflex.