1. Nerves are like wires that transmit signals. Where do these signals typically travel?
A. From the heart to the lungs
B. From the brain to muscles and sensory organs, and vice versa
C. From the stomach to the intestines
D. From the skin to the bones
2. What is the role of sensory organs (like eyes and ears) in relation to the nervous system?
A. They send signals from the brain to the body.
B. They detect stimuli from the environment and send signals to the brain.
C. They produce hormones for the body.
D. They filter waste products from the blood.
3. Which part of the brain is primarily responsible for balance and coordination of movement?
A. Cerebrum
B. Brainstem
C. Cerebellum
D. Spinal cord
4. The nervous system allows us to experience emotions. Which part of the brain is most involved in processing emotions like fear or joy?
A. Cerebellum
B. Brainstem
C. Limbic system (including amygdala and hippocampus)
D. Spinal cord
5. What is the primary difference between the central nervous system and the peripheral nervous system?
A. The central nervous system controls involuntary actions, while the peripheral nervous system controls voluntary actions.
B. The central nervous system includes the brain and spinal cord; the peripheral nervous system includes all nerves outside these two.
C. The peripheral nervous system processes information, while the central nervous system transmits it.
D. The central nervous system is faster than the peripheral nervous system.
6. When you touch something hot, which part of your nervous system helps you quickly pull your hand away?
A. Only the brain
B. The spinal cord, in a reflex action
C. Only the nerves in the hand
D. The digestive system
7. Which of the following is NOT a function of the nervous system?
A. Sensing the environment
B. Coordinating movement
C. Digesting food
D. Regulating heart rate
8. What happens when a nerve impulse travels from a sensory receptor to the central nervous system?
A. It triggers a muscular contraction.
B. It is interpreted by the brain.
C. It is transmitted via electrical and chemical signals.
D. All of the above.
9. When you decide to pick up a pencil, which part of the nervous system initiates the motor command?
A. Sensory nerves
B. Spinal cord
C. Brain (specifically the motor cortex)
D. Autonomic nervous system
10. What is the basic unit of the nervous system that transmits nerve impulses?
A. Synapse
B. Axon
C. Neuron
D. Neurotransmitter
11. What are the basic building blocks of the nervous system that transmit electrical and chemical signals?
A. Blood cells
B. Muscle fibers
C. Neurons (nerve cells)
D. Bone cells
12. Which part of the nervous system connects the brain to the rest of the body and can also process some simple reflexes on its own?
A. Brain
B. Nerves
C. Spinal cord
D. Sensory organs
13. Which of the following is a key function of the brainstem?
A. Learning and memory
B. Voluntary movement initiation
C. Regulating essential life functions like breathing and heart rate
D. Processing complex emotions
14. What are the main components of the central nervous system?
A. Brain and spinal cord
B. Eyes and ears
C. Heart and lungs
D. Muscles and bones
15. How does the nervous system help regulate body temperature?
A. By directly producing heat through muscle activity.
B. By sending signals to sweat glands and blood vessels to control heat loss and retention.
C. By storing excess heat in the bodys fat reserves.
D. By increasing the metabolic rate of all cells.
16. What is the term for the involuntary actions of the body that are controlled by the nervous system, such as breathing or digestion?
A. Voluntary actions
B. Reflexes
C. Involuntary actions
D. Conscious decisions
17. What is the role of a neurons dendrites?
A. To transmit signals to other neurons.
B. To receive signals from other neurons.
C. To process information within the neuron.
D. To provide energy to the neuron.
18. Which of these actions is controlled by the voluntary part of the nervous system?
A. Breathing
B. Heartbeat
C. Walking
D. Digestion
19. What is the role of the peripheral nervous system?
A. To process all sensory information.
B. To control all involuntary bodily functions.
C. To connect the central nervous system to the limbs and organs.
D. To store long-term memories.
20. What is the role of the brains cerebrum in coordinating movement?
A. It controls involuntary reflexes only.
B. It initiates and plans voluntary movements.
C. It maintains balance and posture.
D. It processes sensory information about touch.
21. What is the primary function of the nervous system in the human body?
A. To break down food into smaller pieces.
B. To control and coordinate all body activities.
C. To transport oxygen to all parts of the body.
D. To protect the body from infections.
22. If a person suffers damage to their spinal cord, what is a likely consequence?
A. Loss of ability to think
B. Disruption of communication between the brain and body parts below the injury
C. Inability to digest food
D. Overproduction of hormones
23. Which part of the nervous system is responsible for processing information from the senses and making decisions?
A. Spinal cord
B. Nerves
C. Brain
D. Heart
24. When you see a danger and your heart starts beating faster, which division of the nervous system is primarily activated?
A. Somatic nervous system
B. Autonomic nervous system (sympathetic division)
C. Peripheral nervous system
D. Central nervous system
25. The nervous system helps us to learn and remember. What part of the brain is most associated with these functions?
A. Cerebellum
B. Brainstem
C. Cerebrum
D. Spinal cord
