1. Nerve cells are triggered by neurotransmitters.
• These are endogenous chemicals necessary for conveying impulses in the body.
• Neurotransmitters are classified in various ways. Major divisions are amino acids, peptides and monoamines.
2. Nerve cells are capable to transmit signal at the speed of 100 meters per second.
• Human functioning would be chaotic without nerve cells.
• The peripheral nervous system is responsible in relaying impulses between the body and the brain.
• You automatically removed your hand upon accidentally touching a hot surface otherwise your skin will get burnt is an example of a simple scenario that explains how fast the electrical transmission of nerve cell is.
3. Not all nerve cells conduct impulses.
• Nerve cells play in the transmission of electrical impulses throughout the body.
• Glial cells (neuroglia) are also nerve cells but don’t have any electrical conduction properties.
• It serves as a support, by surrounding the neurons and keeps them still in place. It is also sometimes referred as the glue of the nervous system.
• It protects the neurons by removing dead ones and destroy harmful organism can can potentially cause a disease.
• It supplies essential nutrients and oxygen to the neurons.
• Acts as an insulator from one neuron to another.
4. Nerve cells in the brain doesn’t work alone to complete its functions.
• Like any other cells in the body, nerve cells work with other cells as a team.
• They work hand in hand with cranial and spinal nerves.
5. Nerve cells can be impaired genetically.
• Nerve cells are eukaryotic cell having the same organelles as that of other cells in the body.
• It has nucleus too which carries its genetic material.
• Disease brought about by faulty genes causes nerve cell damage.
• More often than not, these diseases are truly debilitating in nature.
6. Nerve cell regeneration is limited in humans.
• Unlike lower species of organism with extensive regenerative capacity, human nerve regeneration is finite.
• This poses a challenge among scientists in the management and treatment of neurodegenerative diseases.
• An ongoing study is on the race tin developing methods that can naturally enhance nerve cell repair (eg. stem cell research).
7. Nerve cells in the brain have barriers.
• Thus is also known as the blood brain barrier (BBB).
• It keeps away some substances out from the brain, while some materials can penetrate the BBB.
8. Nerve cell changes can affect a person’s mood and behavior.
• One of the functions of nerve cell is to respond to the stimuli through neurotransmitters.
• Serotonin is a neurotransmitter that functions to modulate appetite, mood and sleep. Imbalance of serotonin level will lead to unusual and abnormally stabilized mood.
9. Nerve cells need fats.
• It’s been a common notion that fats is bad for the health. This is absolutely a myth.
• Not all fats is bad for the body, in fact some are essential for proper brain functioning.
• These are called the lipid bilayers in a form of fatty acid that surround the membrane of a neuron.
• These are potent electrical insulator necessary in the conduction of impulses.
10. Nerve cell function is optimized with vitamin B complex.
• Every single cell in the body needs nourishments in order to function properly.
• Among all known vitamins, vitamin B complex has the largest beneficial claim concerning the nervous system.
• In cases of alcohol intoxication, vitamin B is used by the substance metabolism resulting in depletion.
• This is why upon waking up in the morning after a long night of heavy drinking tingling sensations are felt on the periphery (eg. fingertips), also known as neuropathy.