Flashcards in nervous system Deck (60)
consists of the nerves that branch out from the CNS and connect it to the other body parts
peripheral nervous system
the division in the ANS that responds using a fight or flight response when there is a perceived or actual threat to survival
sympathetic nervous system
the division of the ANS that works to conserve body energy and is partly responsible for slowing heart rate, digesting food, and eliminating body wastes
parasympathetic nervous system
which cranial nerves are sensory?
Cranial nerves I, II, VIII
Which cranial nerves are motor?
Cranial nerves III, IV, VI, XI and XII
cortex; responsible for movement; motor and sensory neurons; consists of two hemispheres
Pyramidal and extrapyramidal motor pathways
controls and coordinates muscle movements
respirations, heartbeat, vasomotor activity
Midbrain, pons, medulla oblongata
transmits motor impulse from the brain to the spinal cord and sensory impulses from the peripheral sensory neurons to the brain
the largest part of the brain
Divided into two hemispheres
Governs thought and learning
Second largest part of the brain
Equilibrium (semicircular canals)
Coordinates the action of voluntary muscles and adjusts to impulses from proprioceptors within muscles, joints, and sense organs
Manufactures and absorbs cerebrospinal fluid (CSF)
functions of CSF
Maintains constant intracranial pressure
Provides centers for reflex action
Pathway for impulses to and from the brain
regulates the expenditure of energy and secretes epinephrine and norepinephrine.
Autonomic nervous system
*evaluate body posture
*cranial nerve-assessment technique
*gait movement and balance; Romberg test
mini-mental staus examination
not opening eyes,
not obeying commands
not uttering understandable word
Assessment tool for evaluating LOC ( Level Of Consciousness)
Glasgow Coma Scale
What is a normal response on a Glasgow coma scale?
What score on a Glasgow coma scale is considered coma?
score of 7 or less
What are the impaired cerebral functions of the nervous system?
position in which the arms are flexed, the fists clenched, and the legs extended following neurologic trauma
position in which the extremities are stiff and rigid following neurologic trauma
lack of motor response to stimuli
Patient responds immediately, fully, & appropriately to visual, auditory, & other stimulations
Patient is drowsy at inappropriate times, but can be aroused, only to fall asleep again. Responses are delayed. Speech is incoherent. Response to painful stimuli
Patient is aroused only by vigorous and repetitive physical, auditory, or visual stimulation. Patient has one or two word answers.
Patient is unresponsive except to superficial, relatively mild painful stimuli to which the patient makes some purposeful motor responses (movement) avoid further stimulation.