Exam 9: The Nervous System Part I: the Information Super Highway

Dendrites ________.

This type of glia cell produces myelin for cells in the brain ________.

Tiny sacs at nerve terminals, called ____________, release contents from the cell when calcium flows in.

This type of glia cell attacks microbes and removes debris.

Cell bodies are myelinated.

________ is caused by an autoimmune attack on the myelin in the central nervous system.

List the three phases of the action potential.

The whole series of permeability changes within the cell and the resultant changes in charge across the cell membrane is called the ________.

Patients with injuries to the thoracic spinal cord segment with two paralyzed legs are said to be ________.

Myelinated axons are white.

The ____________ or parasympathetic branch of the nervous system deals with maintenance of homeostasis.

A very common form of peripheral neuropathy caused by repetitive motion is ________.

Guillain-Barré syndrome is a rapid onset paralysis caused by inflammation of ________ nerves.

Potassium ions move across neurons during depolarization.

During ______________ of the action potential, sodium ions are flowing into a cell.

The neurotransmitter group ________ inhibit release of pain neurotransmitters.

________ is an autoimmune attack of the acetylcholine receptor at the neuromuscular junction.

Action potentials are "all or none."

Which of the following is a medical disorder in which the myelin in the CNS has been destroyed ________.

Medication is often injected into the ____________ space to alleviate pain.