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20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt Nervous System Divisions The Cells of the Nervous System Neuro- transmitters Membrane Potentials Lorenzo’s Oil
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Nervous System Divisions. The Cells of the Nervous System. Neuro- transmitters. Membrane Potentials. Lorenzo’s Oil. 10 pt. 10 pt. 10 pt. 10 pt. 10 pt. 20 pt. 20 pt. 20 pt. 20 pt. 20 pt. 30 pt. 30 pt. 30 pt. 30 pt. 30 pt. 40 pt. 40 pt. 40 pt. 40 pt. 40 pt. 50 pt. - PowerPoint PPT Presentation
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Nervous System
Divisions
The Cells ofthe Nervous
System
Neuro-transmitters
Membrane Potentials
Lorenzo’sOil
The two overarching
divisions of the nervous system
What is the central nervous system
(CNS) and peripheral nervous
system (PNS)?
The two major components of the
CNS.
What are the brain and spinal
cord?
The division within the PNS that is responsible for
relaying messages from the external
environment to the brain.
What is the sensory or
afferent division (via neurons)?
This division of the PNS is responsible for skeletal muscle
movement.
What is the somatic motor
nervous system?
This is the division of the Autonomic
Nervous System that prepares the body for physical activity (ie – increases heart rate,
bp, etc…).
What is the sympathetic
division?
This is the main cell of the nervous
system responsible for the transmission
of messages between CNS and
PNS.
What is the neuron?
The two main processes of the
neuron.
What are axons and dendrites?
The group of nervous system
cells that maintain the ability to regenerate.
What are neuroglia?
This type of cell produces the
cerebrospinal fluid that fills the central canal in the spinal
cord and the ventricles within the
brain.
What are ependymal cells?
This type of cell is responsible for ridding the brain of debris and foreign substances – it
acts as an immune system for the nervous
system.
What are microglia?
Junction where neurotransmitters deliver messages between neurons.
What is the synapse?
Neurotransmitters are almost always
this type of macromolecule.
What is a protein?
This is the brain’s version of
adrenaline – it mediates energy, sexual function,
mental focus and motivation.
What is norepinephrine?
Responsible for helping us feel
wonderful and happy, this neurotransmitter
may be the most influential in
regulating mood and emotion.
What is seratonin?
In addition to helping us maintain our
sanity, having an imbalance in this
neurotransmitter plays a role in the
development of Parkinson’s Disease.
What is dopamine?
This is the name of the active transport
pump that helps neurons maintain
their resting membrane potential.
What is the sodium-potassium
pump?
At resting membrane
potential, the charge found in the
synaptic cleft.
What is a positive charge?
The rapid depolarization and repolarization of a
neuron.
What is an action potential?
A type of action potential that jumps
from one Node of Ranvier to the next, which is propagated very quickly, by the
way.
What is saltatory conduction?
Saltatory Conduction is
performed by this type of axon.
What is a myelinated axon?
The name of the disease that
Lorenzo has (full name only).
What is adrenoleukodystroph
y?
Michaela’s genotype with
regard to her 23rd chromosome pair.
What is Xx (or heterozgous)? She is a carrier.
Part of the neuron in Lorenzo’s PNS
that is affected by ALD.
What is the myelin sheath?
Type of macromolecule that builds up in nervous
tissue of ALD patients solubilizing
portions of the neurons.
What are very long chain
saturated fatty acids (VLCSFAs)?
Type of molecule that ALD patients
lack that causes the build-up of VLCSFAs.
What is an enzyme (which aids in the process of VLCSFA
breakdown)?
