Question | Answer |
CNS | Central Nervous System |
PNS | Peripheral Nervous System |
ANS | Autonomic Nervous System |
Neurons consist of 3 parts they are: | Cell body of neuron, Dendrites, & Axon |
Sensory neurons transmit impulses _____the sensory neurons. *TOward the brain* | TO |
Motor neurons transmit impulses ____ from the brain and spinal cord. | AWAY |
Sensory neurons are aka as: | afferent neurons |
Motor neurons are aka as: | efferent neurons |
Three main types of connective tissue cells of the CNS are: | Astrocytes, Microglia, & Oligodendrocytes |
Is it true that the glia cells hold the functioning neurons together, protect them, and regulate neuron function? | Yes this is true |
Multiple Sclerosis (MS) is: | characterized by myelin loss in central nerve fibers and results in conduction impairments. |
Those with MS are believed to have contracted it via: | autoimmune disorder or viral (Montel Williams has this) |
A __________ is the simplest type of neuron pathway. | Reflex arc |
The neural pathway involved in the patellar reflex is aka: | "knee jerk" |
Nerve impulse definition is: | A wave of electrical disturbances that travel along the surface of a neuron membrane; often called the action potentials. |
Synapse definition is: | Where the impulses are transmitted from one neuron to another. |
The 3 structures of the synapse are: | Synaptic knob, synaptic cleft, and plasma membrane |
Examples of neurotransmitters are: | norepinephrine, dopamine, and serotonin |
Neurotransmitters are: | chemicals by which neurons communicate. There are 30 different compounds that have been identified. |
Catecholamines play a role in: | Sleep, motor function, mood and pleasure recognition. |
_______________ is a morphine like neurotransmitter, a natural painkiller. | Endorphins |
Serotonin-uptake intion causes an increase in the amt. of serotonin in the synapse when a ____ is taken. | Antidepressant |