CCN 1.1

The structure connecting the right and left hemispheres of the brain is:

• Corpus callosum

• Pons

• Medulla oblongata

• Thalamus

The protective membrane layers surrounding the brain and spinal cord are called:

• Axons

• Synapses

• Myelin sheath

• Meninges

Which part of the spinal cord contains motor neurons?

• Dorsal horn

• Ventral horn

• Central canal

• Lateral horn

The type of glial cell that forms the myelin sheath in the central nervous system is the:

• Astrocyte

• Schwann cell

• Oligodendrocyte

• Microglia

Which structure connects the brain to the spinal cord?

• Cerebellum

• Brainstem

• Thalamus

• Corpus callosum

The tough outermost layer of the meninges is the:

• Pia mater

• Arachnoid mater

• Dura mater

• Myelin sheath

Which structure in the spinal cord contains sensory neuron cell bodies?

• Ventral root

• Dorsal root ganglion

• Central canal

• Lateral horn

Which part of the spinal cord contains interneurons?

• Central canal

• Ventral horn

• Dorsal horn

• Lateral horn

The spinal nerve branches into two roots. Which root contains motor neurons?

• Dorsal root

• Ventral root

• Dorsal root ganglion

• Lateral horn

The structure that separates the left and right hemispheres of the brain is the:

• Corpus callosum

• Central sulcus

• Longitudinal fissure

• Lateral sulcus