Neurons and Neural Transmission

Why are neurons considered the fundamental unit of communication in the nervous system?

• They transmit information through electrical and chemical signals.
• They can regenerate quickly after damage.
• They are the only cells in the brain.
• They are larger than other types of cells.

Which of the following best illustrates the role of neurons in the nervous system?

• Neurons store energy for the body.
• Neurons transmit signals that allow us to move and feel.
• Neurons are responsible for producing hormones.
• Neurons help in digestion by breaking down food.

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How do neurons communicate with each other?

• Through direct contact only
• By releasing hormones into the bloodstream
• By transmitting electrical impulses and releasing neurotransmitters
• By exchanging genetic material

What is the primary function of dendrites in a neuron?

• To receive signals from other neurons
• To release neurotransmitters into the synapse
• To protect the axon with insulation
• To transmit electrical impulses away from the soma

Which statement best describes the soma of a neuron?

• It is responsible for receiving signals from other neurons.
• It contains the nucleus and maintains the neuron’s functions.
• It carries electrical impulses to other cells.
• It releases neurotransmitters into the synapse.

If a neuron has damaged myelin sheath, what might be a likely consequence?

• Improved neurotransmitter release
• Enhanced signal reception
• Decreased speed of impulse transmission
• Increased speed of impulse transmission

Which part of the neuron is responsible for carrying electrical impulses away from the soma?

• Dendrites
• Soma
• Axon
• Terminal buttons

What role does the myelin sheath play in neuron function?

• It protects the nucleus of the neuron.
• It releases neurotransmitters into the synapse.
• It increases the speed of electrical transmission.
• It receives signals from other neurons.

What happens at the axon terminals during neuron communication?

• Neurotransmitters are absorbed.
• Electrical impulses are generated.
• Neurotransmitters are released into the synapse.
• Signals are received from dendrites.

How do terminal buttons contribute to neuron communication?

• They receive signals from other neurons.
• They transmit electrical impulses.
• They release neurotransmitters into the synapse.
• They insulate the axon.