Nervous System Flashcards
afferent neurons & function
sensory & carry messages toward CNS
efferent neurons & function
motor & carry messages away from CNS
cerebellum function
muscle coordination, balance, posture, muscle tone
thalamus function
processing & relay center for sensory info. (pain & temp)
hypothalamus function
regulates autonomic NS (emotions)
cerebrum function
reasoning, thought, judgement, speech, sensation, smell, hearing,
midbrain function
conducting impulses for certain eye & auditory reflexes
pons function
chewing, tasting, saliva production, assisting w/ respiration
meninges function
covers/protects brain & spinal cord
dura mater description
thick, tough layer
arachnoid description
delicate, web-like, CSF circulates in subarachnoid layer
pia mater description
adherent to brain tissue
sympathetic function
sensory info. from visceral organs to CNS
parasympathetic function
motor impulses from CNS to smooth & cardiac muscle, glands
quadriplegia
from neck down
paraplegia
lower half of body
hemiplegia
one side of body
what level spinal cord ends
L1-L2
frontal function
reasoning, judgement, personality, speech, motor
parietal function
sensory perception, movement awareness
temporal function
hearing, memories
occipital function
vision
2 divisions of peripheral nervous system
autonomic & somatic
dermatome?
area of skin supplied by the spinal nerve
cerebral spinal fluid function
shock absorber & provides nutrients/waste removal
what does glasgow coma scale assess
level of consciousness of patients w/ acute brain injuries
function of using rancho los amigos for traumatic brain injury
measures levels of awareness, cognition, behavior & interaction w/ environment
CP
poor muscle control, speech defects, spasticity
damage that affects cerebrum
parkisons
muscle tremors, rigidity, slow gait
chronic, degenerative CN disorder
ALS
attacks nerve cells responsible for controlling voluntary muscles
TBI
sudden injury that causes damage to brain
Carpal Tunnel Syndrome
numbness & tingling in hand/arm by pinched nerve in wrist
CVA
loss of blood flow to part of brain, damages brain tissue
Multiple Sclerosis
inflammation that causes demyelination of myelin sheath
epilepsy
recurrent episodes of seizers
Cranial Nerve I & function
olfactory, sensory, smell
Cranial Nerve II & function
Optic, sensory, vision
Cranial Nerve III & function
Oculomotor, motor, eye movement & pupil dilation
Cranial Nerve IV & function
Trochlear, motor, eye movement
Cranial Nerve V & function
Trigeminal, Both, sensation in skin, face, head & chewing
Cranial Nerve VI & function
Abducens, motor, eye movement
Cranial Nerve VII & function
Facial, Both (facial movement, taste, saliva & tear secretion)
Cranial Nerve VIII & function
Vestibulocochlear, sensory, balance, posture, hearing
Cranial Nerve IX & function
Glossopharyngeal, both, swallowing, taste, saliva secretion
Cranial Nerve X & function
Vagus, both, taste, visceral sensation
Cranial Nerve XI & function
Accessory, motor, movement of head & shoulders
Cranial Nerve XII & function
Hypoglossal, motor, movement of tongue
radicul/o
root/nerve root
-esthesia
sensation/feeling
encephal/o
brain
contus/o
bruise
hyperesthesia
excessive sensitivity to stimuli
hydrocephalus
excess cerebral spinal fluid accumulates in brain
anesthesia
use of medicine to prevent pain
encephalitis
inflammation of brain
parasthesia
abnormal bruising/prickling sensation
radiculopathy
nerve pain caused by pressure on spinal nerve roots in neck
