Deck 3 – Central Nervous System drugs Flashcards
The brain and spinal cord are anatomical divisions of the nervous system that are positioned within the cranial and vertebral cavities, respectively.
CENTRAL NERVOUS SYSTEM (CNS)
A neurotransmitter diffuses across a relatively short distance between two neurons or between a neuron and its destination.
CHEMICAL SYNAPSE
Muscle contraction that is both inappropriate and constant.
DYSTONIA
A link between two neurons or any two electroactive cells in which ions flow directly through channels crossing their neighboring cell membranes.
ELECTRICAL SYNAPSE
Severe hypertension (blood pressure more than 180/120 mm Hg) with organ dysfunction is the diagnosis.
HYPERTENSIVE CRISIS
The primary function of a neural tissue cell is to generate and transmit electrical impulses into, within, and out of the nervous system.
NEURON’S
A chemical signal that is released from a neuron’s synaptic end bulb to produce a change in the target cell.
NEUROTRANSMITTER
Muscle weakness in the eyes.
OPTHALMOPLEGIA
Blood pressure changes significantly from laying to sitting to standing.
ORTHOSTATIC HYPOTENSION
All elements of the nervous system excluding the brain and spinal cord that are anatomically outside the cranial and vertebral compartments.
PERIPHERAL NERVOUS SYSTEM (PNS)
The peripheral nervous system’s cord-like bundle of axons that carries sensory input and response output to and from the central nervous system.
NERVE
The central nervous system area that serves as a relay for sensory pathways.
THALAMUS
The membrane voltage that causes an action potential to occur.
THRESHOLD
Tremor is usually present while the individual is at rest; when the person sits, the arms tremble, but the tremor ceases when the person tries to hold anything.
TREMOR
Muscle tone has increased, as has resistance to movement. Cogwheel stiffness may occur as severity increases.
RIGIDITY
