I WONDER - What Organs Are Part Of The Nervous System?

The video explains the components of the nervous system, including the brain, spinal cord, sensory organs, and nerves. It describes how nerves transmit signals to the brain faster than conscious thought, leading to reflex actions. An example is given of withdrawing a hand from a hot surface before feeling pain, illustrating the speed and efficiency of nerve communication.

Which of the following is NOT a component of the nervous system?

• Heart

• Spinal cord

• Sensory organs

• Brain

What role do nerves play in the nervous system?

• They control muscle growth.

• They store memories.

• They send signals to the brain.

• They produce hormones.

How do nerves communicate with the brain?

• By releasing chemicals

• Through muscle contractions

• Through the bloodstream

• Via the spinal cord

Why might your body react before you consciously feel pain?

• Sensory organs are inactive.

• The spinal cord delays the signal.

• Nerves send signals faster than conscious thought.

• The brain is slow to process signals.

What is an example of a reflex action?

• Thinking about a math problem

• Blinking when something approaches your eyes

• Deciding what to eat for dinner

• Writing a letter