Q1. Which ion is essential for the release of neurotransmitters at a synapse?A. Sodium (Na⁺)B. Potassium (K⁺)C. Calcium (Ca²⁺)D. Chloride (Cl⁻)
Q2. Which of the following best describes the role of the spinal cord in the nervous system?A. Acts as the main site for higher cognitive functionsB. Connects the peripheral nervous system to the brainC. Controls the secretion of hormonesD. Processes and stores sensory memories
Q3. Which of the following statements about the hypothalamus is correct?A. It regulates homeostasis, including body temperature and hunger.B. It plays no role in hormone secretion.C. It directly controls skeletal muscle movements.D. It is responsible for voluntary decision-making.
Q4. Which part of the neuron contains the nucleus and most of the organelles?A. AxonB. DendriteC. Cell bodyD. Synaptic knob
Q5. Which part of the brain regulates body temperature, hunger, and thirst?A. ThalamusB. CerebellumC. HypothalamusD. Medulla oblongata
Q6. Which type of conduction allows nerve impulses to jump between nodes of Ranvier?A. Continuous conductionB. Chemical conductionC. Saltatory conductionD. Synaptic transmission
Q7. Which part of the human nervous system acts as the control center for coordination?A. Spinal cordB. Medulla oblongataC. BrainD. Cranial nerves
Q8. Which ion is responsible for depolarization during an action potential?A. Potassium (K⁺)B. Calcium (Ca²⁺)C. Sodium (Na⁺)D. Chloride (Cl⁻)
Q9. Which of the following statements about the cerebrum is incorrect?A. It controls higher cognitive functions like thinking and learning.B. It is divided into two hemispheres.C. It does not contain any gray matter.D. It is responsible for voluntary muscle control.
Q10. Which of the following neurotransmitters is released at the neuromuscular junction to stimulate muscle contraction?A. DopamineB. AcetylcholineC. SerotoninD. Epinephrine