Neuroscience Quiz

What is the main role of the nervous system according to the text?

• To control voluntary movements

• To communicate information from the outside world to the brain and vice versa

• To digest food

• To pump blood throughout the body

Which aspect of neuroscience is highlighted as being unique in the text?

• Its focus on the brain only

• Its exclusion of mathematics and physics

• Its multidisciplinary nature

• Its emphasis on individual molecules only

What is the main cell type for communicating across long distances in the nervous system?

• Glial cells

• Red blood cells

• Neurons

• White blood cells

Why can't new neurons be easily made as one gets older?

• Because the DNA changes

• Because neurons do not have a nucleus

• Because most of the neurons a human will ever have are in place by the time they are born

• Because neurons do not contain cytosol

Which part of the neuron contains the DNA?

• Mitochondria

• Nucleus

• Golgi apparatus

• Cytosol

What separates the cytosol in the neuron from the outside space?

• Dendritic spines

• Neuronal membrane

• Axon

• Soma

What is the function of dendrites in a neuron?

• To transmit electrical signals to the next neuron

• To receive synaptic inputs from other neurons

• To insulate the axon with myelin

• To release neurotransmitters

What is the term used for the insulating layer that covers many axons?

• Dendritic spines

• Axon terminal

• Myelin sheath

• Axon hillock

What is the name of the gaps in the myelin sheath that are important for sending electrical signals?

• Synapse

• Axon terminal

• Dendrite

• Nodes of Ranvier

Where does the axon typically begin in a neuron?

• At the dendrites

• At the axon hillock

• At the axon terminal

• At the Nodes of Ranvier