Quiz on the Nervous System

What are the two main divisions of the peripheral nervous system?

• Central and Peripheral

• Afferent and Efferent

• Sensory and Motor

• Somatic and Autonomic

What type of cell in the nervous system is primarily involved in the formation of myelin sheaths?

• Neuroglia

• Oligodendrocytes

• Astrocytes

• Microglia

What is the primary function of the myelin sheath?

• To protect the neuron

• To store neurotransmitters

• To speed up nerve impulse propagation

• To provide structural support

What is the resting membrane potential of a typical neuron?

• +30 mV

• -70 mV

• -55 mV

• 0 mV

Which type of synapse allows for direct electrical coupling between neurons?

• Axosomatic synapse

• Chemical synapse

• Electrical synapse

• Axodendritic synapse

What is the role of neurotransmitters in the nervous system?

• To maintain resting potential

• To generate action potentials

• To transmit signals across synapses

• To form myelin sheaths

Which part of the brain is responsible for regulating vital functions such as breathing?

• Brainstem

• Cerebrum

• Cerebellum

• Spinal cord

What type of receptors are involved in fast synaptic transmission?

• Metabotropic receptors

• Nicotinic receptors

• Ionotropic receptors

• G-protein coupled receptors

Which division of the autonomic nervous system is responsible for 'fight or flight' responses?

• Somatic division

• Central division

• Sympathetic division

• Parasympathetic division

What is the primary neurotransmitter used by the parasympathetic nervous system?

• Serotonin

• Acetylcholine

• Norepinephrine

• Dopamine