Neuroscience Quiz

What must be intact for a neuron to regenerate in the peripheral nervous system (PNS)?

• Cell body

• Axon

• Dendrite

• Synapse

What structure contains the bulk of the Schwann cell's cytoplasm and organelles?

• Neurolemma

• Axon

• Dendrite

• Soma

Which of the following characteristics is not associated with Schwann cells?

• Envelop parts of several axons with multiple processes

• Promote regeneration of damaged axons

• Form myelin sheath in the PNS

• Support nerve fiber maintenance

The majority of neurons are functionally classified as __________ neurons.

• Interneurons

• Motor neurons

• Sensory neurons

• Bipolar neurons

What structure found in the peripheral nervous system (PNS) promotes regeneration of a damaged axon?

• Schwann cell

• Oligodendrocyte

• Astrocyte

• Microglia

The most common type of neuron in the human body is __________.

• Multipolar

• Bipolar

• Unipolar

• Pseudounipolar

What is the most metabolically active part of the neuron?

• Soma

• Axon

• Dendrite

• Synapse

What forms the white matter of the spinal cord?

• Myelinated axons

• Unmyelinated axons

• Dendrites

• Soma

Which of the following characteristics makes myelin such an excellent insulator for axons?

• High lipid content

• High protein content

• High carbohydrate content

• High water content

Which division of the peripheral nervous system (PNS) carries signals from bones, joints, skin, and organs of vision to the central nervous system (CNS)?

• Somatic sensory

• Autonomic motor

• Visceral sensory

• Somatic motor