BioScience Dictionary

 
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Neuron 55 times.

Displaying results 1 to 10.

1. Acetylcholine
A chemical found in vertebrate neurons that carries information across the synaptic cleft, the space between two nerve cells.

2. Acetylcholinesterase
An enzyme that breaks down unused acetylcholine in the synaptic cleft (the space between neurons); this enzyme is necessary to restore the synaptic cleft so it is ready to transmit the next nerve impulse.

3. Action potential (nerve impulse)
The sequential, electrochemical polarization and depolarization that travels across the membrane of a nerve cell (neuron) in response to stimulation (touch, pain, cold, etc.)

4. Action potential
A reversal of the electrical potential in the plasma membrane of a neuron that occurs when a nerve cell is stimulated; caused by rapid changes in membrane permeability to sodium and potassium.

5. Adrenergic
Refers to neurons that use catecholamines ( adrenaline , dopamine and noradrenaline ) as neurotransmitters .

6. Astrocyte (astroglia)
A star-shaped cell of the nervous system which provides nutrients, support and insulation for neuron s.

7. Astrocytosis (astrogliosis)
An abnormal increase in the number of astrocyte s due to the destruction of nearby neuron s, typically because of hypoglycemia or oxygen deprivation.

8. Axon
The threadlike extensions on a neuron , or nerve cell which conducts nerve impulses.

9. Axons
Long fibers that carry signals away from the cell body of a neuron .

10. Cell body
In a neuron , the part that contains the nucleus and most of the cytoplasm and the organelles .


View web definitions »

Learn more about Neuron »