Nerve Cells
These are nerve cells that transmit information.
What are neurons?
These are the three parts of the nervous system.
What are the brain, spinal cord, and nerves?
These are the channels that sodium (Na+) ions and potassium (K+) ions travel through.
What are voltage gated channels?
These are white masses on the brain that are evidence of nerve cell damage in your brain or spinal cord.
What are lesions?
These are cells connected to nerve cells that act as support for the neurons.
What are neuroglial cells?
This is the part of a nerve cell that contains the nucleus and other organelles.
What is a cell body?
These are the two divisions of the nervous system.
What are the central nervous system and the peripheral nervous system?
This determines the speed at which an impulse travels along an axon. If it has this characteristic, then the impulse travels faster.
What is a myelinated of axon or unmyelinated?
This is a junction or area between two communicating neurons.
What is a synapse?
These are neuroglial cells that are responsible for immune function, digesting debris, and killing bacteria.
What are microglial cells?
These are the shorter, more numerous parts of the nerve cell that receive information.
What are dendrites?
This is the voluntary portion of the nervous system, while this other part is the involuntary portion.
What are the somatic and autonomic nervous systems?
This is the stage potential of a nerve cell membrane at -70mv. The outside of the cell is positive and the inside of the cell is negative.
What is resting potential?
What is a neurotransmitter?
These neuroglial cells are responsible for making myelin sheath that provides insulation around the axons,
What are oligodendrocytes?
This is a single, long fiber that conducts information along the nerve cell.
What is an axon?
This is the branch of the autonomic nervous system that is responsible for the "fight or flight" response.
What is the sympathetic branch?
This is the stage of the action potential when the sodium (Na+) ions move back to the outside of the cell and the potassium (K+) ions move back to the inside of the cell, causing the charges to go back to normal.
What is repolarization?
This is when a needle is placed between the lumbar, and spinal fluid is drawn to check for inflammation and bacterial infection.
What is a lumbar puncture?
These neuroglial cells connect blood vessels to neurons.
What are astrocytes?
This is the insulation around the axon of the nerve cell and these are the spaces in between each insulation.
What is the myelin sheath and the nodes of ranvier?
This is the branch of the autonomic nervous system that is responsible for the "rest and digest" function.
What is the parasympathetic branch?
During this stage of an action potential, sodium ions (Na+) move into the cell and potassium ions (K+) move out of the cell. For a split second, this causes the inside of the cell to become positive and the outside of the cell to become negative.
What is depolarization?
This part of the brain is used to regulate the blood pressure, heart rate, respiratory rate and other such life-sustaining activities.
What is the medulla oblongata?
These cells form the insulating myelin sheath around the neurons in the peripheral nervous system.
What are schwann cells?