Anatomy of the Brain and Neurons

What is the main role of the nervous system?

• To bring in and analyze information from the outside world to the brain

• To send information from the body to the brain

• To create and store deoxyribonucleic ions and standard organelles

• To interact with the left right side of the brain to increase synap membrane production

Which of the following fields is NOT part of the multidisciplinary nature of neuroscience?

• Molecular biology

• Cell biology

• Chemistry

• Geology

What is the most important cell type of the nervous system?

• Astrocyte

• Microglia

• Neuron

• Oligodendrocyte

What is the function of dendrites in a neuron?

• To transmit output signals

• To receive input signals

• To insulate the axon

• To release neurotransmitters

What is the purpose of myelin in the axon?

• To speed up the conduction of electrical signals

• To release neurotransmitters

• To receive synaptic inputs

• To regulate the chemical makeup of extracellular fluid

What is the point at which one neuron communicates with another neuron called?

• Axon terminal

• Dendrite

• Soma

• Synapse

Which type of glial cell forms the myelin sheath around axons in the central nervous system?

• Astrocyte

• Microglia

• Oligodendrocyte

• Schwann cell

What is the role of astrocytes in the nervous system?

• To regulate the chemical makeup of extracellular fluid

• To protect neurons from toxins

• To clear away pathogens and damaged neurons

• To send electrical signals

What is the function of microglia in the brain?

• To regulate the chemical makeup of extracellular fluid

• To protect neurons from toxins, disease and invaders

• To connect neurons within the nervous system

• To send electrical signals

What is the difference between grey matter and white matter in the central nervous system?

• Grey matter contains cell bodies and dendrites, while white matter contains myelinated axons

• Grey matter contains myelinated axons, while white matter contains cell bodies and dendrites

• Grey matter is found in the brain, while white matter is found in the spinal cord

• Grey matter is made up of glial cells, while white matter is made up of neurons