Neuroscience Quiz

What is the main function of neurons?

• Digestion

• Information processing

• Respiration

• Reproduction

How many neurons are estimated to be in a typical human brain?

• 86 trillion

• 86 billion

• 86 million

• 86 quadrillion

What is the function of dendrites in a neuron?

• Generating electrical impulses

• Releasing neurotransmitters

• Conducting action potentials

• Receiving messages from other neurons

What is the metabolic center of a neuron called?

• Axon hillock

• Soma

• Dendrite

• Nucleus

What is the region where changes in the electrical properties of a neuron are integrated to determine if the neuron will initiate its own action potential?

• Axon hillock

• Dendrite

• Axon terminal

• Soma

What is the function of myelin in the axon?

• Slowing down the propagation of electrical signals

• Speeding up the propagation of electrical signals

• Preventing the release of neurotransmitters

• Generating electrical impulses

What is the space between neurons at a synapse called?

• Soma

• Synaptic cleft

• Axon terminal

• Dendrite

Which type of neuron is responsible for controlling movement?

• Sensory neuron

• Motor neuron

• Interneuron

• Projection interneuron

What is the main function of sensory neurons?

• Controlling movement

• Carrying sensory signals to the spinal cord and brain

• Receiving information from neurons

• Passing information on to other neurons

What is the function of local interneurons?

• Passing information on to other neurons

• Carrying signals over long distances

• Forming connections with other neurons nearby

• Receiving information from neurons