The brain and cranial nerves Flashcards
cerebrum lobes
- frontal lobe
- parietal lobe
- occipital lobe
- temporal lobe
central sulcus seperates the
parietal and frontal lobes
lateral sulcus seperates the
frontal, parietal and temporal lobe
brain directionality
dorsal = above
ventral = below
rostral = anterior
caudal = posterior
ipsilateral definition
same side as
contralateral definition
opposite side of
basal ganglia definition
cell bodies in the CNS
brocas area function
speech production
wernickes area function
speech comprehension
primary cortex has a
specific, dedicated function
secondary cortex has a
relatively specific integrative function
somatosensory assosiation cortex provides
context about sensory info
samatosensory & motor homunculus are samatopy
point to point correspondance between parts of the body and the CNS
toes/legs = medial
face/genitals = lateral
white matter tracts of the brain catagories
- association fibers
- commissural fibers
- projection fibers
association fibers are
within the brain hemisphere
commissural fibers are
between the hemisphere
projection fibers are
from brain stem to cerebral cortex
what are the major groups of projection fibers
- corona radiata (higher)
- internal capsule (lower)
brain nuclei
- basal ganglia
- thalamus
- hippocampus
- hypothalamus
- amygdala
primary motor cortex function
first order motor neurons that mediate behavioral responses
corticospinal tract governs
voluntary control of body musculature
motor control from the primary motor cortex is
contralateral
upper motor neuron lesion
damage to the primary motor cortex
lower motor neuron lesion
damage to the spinal nerve
