Central Nervous System Quiz

What is the main function of the central nervous system?

• Transport oxygen in the body

• Digest food

• Regulate body temperature

• Control voluntary and involuntary actions

Which part of the central nervous system is composed of nerve cell bodies, nerve fibers, and neuroglia?

• Grey matter

• White matter

• Blood-brain barrier

• Cerebral cortex

What is the color of the grey matter in the fresh state?

• White

• Grey

• Blue

• Red

Which part of the central nervous system is mostly myelinated and contains few blood capillaries?

• Blood-brain barrier

• Grey matter

• Cerebral cortex

• White matter

What is the function of the ventral horn in the spinal cord?

• Intermediate grey matter

• Sympathetic nuclei

• Sensory nuclei

• Motor nuclei

Which type of cells are found in the cerebral cortex and have a pyramidal cell body with an apex directed towards the cortical surface?

• Stellate cells

• Horizontal cells of Cajal

• Granule cells

• Pyramidal cells

How many segments is the spinal cord formed of?

• 31

• 12

• 5

• 8

What is the main function of the lateral horn in the spinal cord?

• Sympathetic nuclei

• Motor nuclei

• Sensory nuclei

• Intermediate grey matter

Which layer of the cerebral cortex consists mainly of the apical dendrites of pyramidal cells and horizontal neurons of Cajal?

• Molecular layer

• External granular layer

• Internal granular layer

• Polymorphic layer

What is the role of Betz cells in the cerebral cortex?

• Motor neurons

• Sensory neurons

• Upper motor neurons

• Sympathetic neurons