Nervous System Test

The nervous system is primarily made up of

• Neurons

• Gray matter

• Myelin

• Neuroglia

Which of the following is used to classify a neuron?

• size of the cell body

• number of processes from cell body

• location of nodes of Ranvier

• length of the axon

If these cells were very active, it would likely indicate an infection in the CNS

• Oligodendrocytes

• Satellite Cells

• Microglia

• Ependymal

When you intentionally tighten your abdominal muscles, which divisions of the nervous system are being used?

• Sensory; Somatic

• Sensory; Autonomic

• Motor; Autonomic

• Motor; Somatic

The sensory division of the peripheral nervous system is also known as the ___________ division.

• Afferent

• Efferent

Which part of the nervous system can help calm someone down after an emergency has occurred?

• Afferent division

• Sympathetic division

• Somatic division

• Parasympathetic division

When an impulse passes through a neuron, what is the correct order for transmission of the impulse?

• axon, cell body, dendrites

• cell body, dendrites, axon

• cell body, axon, dendrites

• dendrites, cell body, axon

____________ wrap around the axon of a neuron to create the __________________.

• Schwann cells, myelin sheath

• Astrocytes, capillaries

• Microglia, immune response

• Ependymal cells, cerebrospinal fluid

During the transmission of an action potential across a _________, Ca2+ channels open triggering the synaptic vesicles to release _______ to pass the signal to the postsynaptic neuron.

• cell body, Na2+

• synapse, receptors

• cell body, action potentials

• synapse, neurotransmitters

Which describes a cell's resting potential?

• Charged ions rush into the cell and reverse charges inside and outside of the cell

• The cell does not have a charge at all

• Cell is negatively charged, environment is positively charged

• Cell is positively charged, environment is negatively charged