Nervous System Quiz

Which of the following is the functional unit of the nervous system?

• Neuron

• Glial cell

• Axon

• Dendrite

What part of the neuron receives incoming signals?

• Axon

• Dendrite

• Soma

• Synaptic knob

Which structure in the brain controls breathing and heart rate?

• Cerebellum

• Thalamus

• Medulla oblongata

• Corpus callosum

Which part of the nervous system controls voluntary movements?

• Autonomic nervous system

• Sympathetic nervous system

• Parasympathetic nervous system

• Somatic nervous system

Which cells form the myelin sheath in the central nervous system (CNS)?

• Schwann cells

• Astrocytes

• Oligodendrocytes

• Microglia

The blood-brain barrier is primarily maintained by which type of neuroglia?

• Astrocytes

• Ependymal cells

• Microglia

• Schwann cells

What is the main neurotransmitter at neuromuscular junctions?

• Dopamine

• GABA

• Acetylcholine

• Serotonin

Which division of the autonomic nervous system prepares the body for "fight or flight"?

• Parasympathetic

• Sympathetic

• Somatic

• Central

What is the role of the cerebellum?

• Speech production

• Coordination and balance

• Memory and learning

• Hormone production

What type of neuron carries impulses from sensory receptors to the CNS?

• Motor neuron

• Interneuron

• Sensory neuron

• Relay neuron