test 1: lecture 1 Flashcards
myelin covering is provided by __ for nerves in the PNS
schwann cells
group of cell bodies in the PNS
ganglia
cell bodies in the CNS
nucleus
pathway in CNS
tract
____ provide myelination in the CNS
oligodendrocytes
another name for incoordination
ataxia
ataxia is ____ and is a problem with ___
incoordination (don’t know where limbs are)
sensory input
dysfunction of the motor outputs can cause ___
paresis and paralysis
weakness is ___
paresis
motor problems cause ___
sensory problems cause ___
paresis (weakness), paralysis
ataxia (incoordination)
5 divisions of the spinal cord
C1-5
C6-T2 (arms)
T3-L3
L3-S1 (legs)
S1-S3
three major anatomical divisions of the brain
cerebral hemispheres
brain stem
cerebellum
three major functional divisions of the brain
- Cerebral hemispheres/diencephalon (moved from anatomical division of brain stem)*
- Brain stem*
Midbrain
Pons
Medulla
Cerebellum
___ a complete loss of voluntary motor ability
paralysis
___ a partial loss of voluntary motor ability; characterized by an inability to fully support weight while walking or standing, and tremoring when trying to stand.
paresis