NS Basics
The 2 main components of the Central Nervous System (CNS)
Brain and spinal cord
Masses of nerve cells that transmit information (functional unit of the nervous system?
Neurons
A demyleinating disease that Izzy was diagnosed with
Multiple Sclerosis (MS)
This neurotransmitter plays a role in your body’s reward system, which includes feeling pleasure, achieving heightened arousal and learning
Dopamine
Autoimmune disorder in which antibodies destroy neuromuscular connections
Myasthenia Gravis
The Nerves throughout the body are component of this part of the nervous system
Peripheral Nervous System (PNS)
Insulation surrounding the axons of a neuron
Myelin
An MRI was ordered to scan Izzy's brain. At this appointment, the specialist showed her the brain scan and said “These white spaces are ________. They shouldn’t be there and are signs of brain damage.“
Lesions
These hormones is your body’s natural pain reliever. They play a role in our perception of pain. Also released during exercise.
Endorphins
If present, it attaches to the dopamine transporter and blocks the normal process, resulting in a buildup of dopamine in the synapse, which contributes to its pleasurable effects
Cocaine
This occurs when the spinal cord is damaged?
Paralysis
Single long fibers, conducts information away from the cell
Axon
For a person with MS, this body system causes the myelin of nerve cells to deteriorate
Immune System
This neurotransmitter regulates brain activity to prevent problems in the areas of anxiety, irritability, concentration, sleep, seizures and depression. Alcohol impacts the ability of this neurotransmitter
GABA (Gamma-aminobutryic acid )
This drug essentially causes a massive flood of serotonin from the brain cells into the synapse, cuasing short-term feelings of hightended euphoria
Ecstasy (MDMA)
The Autonomic Nervous System (name 2 branches)
The Parasympathetic (rest and digest) and Sympathetic (fight or flight) branches
Shorter, more numerous parts of the neueon that receive information
Dendrites
This component of the immune system is often measured/counted as a clear indicator of MS.
White Blood cells
The neurotransmitter that helps regulate mood, sleep patterns, sexuality, anxiety, appetite and pain. Its levels are affected by light exposure and exercise
Serotonin
This drug activates/binds to opiate receptors by mimicking natural opiates , blocks release of GABA, and more dopamine is released... causing strong sedation and well-being
Heroin
Overall function of the NS - coordinate the body’s systems by receiving and sending information; maintaining ____________________
Homeostasis ?
Junction between two communicating neurons
Synapse
This component of neurons of often measured when testing for MS. When this component is elevated above the control group, it is likely the person has MS
Neurofilaments (Count)
These hromones are responsible for your body’s so-called “fight-or-flight response” to fear and stress. These neurotransmitters stimulate your body’s response by increasing your heart rate, breathing, blood pressure, and alertness
Epinephrine (also called adrenaline)
This condition prevents the body from breaking down very long chain fatty acids, causing these fatty acid chains to build up in the nervous system. The accumulation damages the myelin sheath by inflammation.
Adrenoleukodystrophy (ALD)