Cerebral Hemispheres Flashcards
sulcus and gyrus
sulcus is dip
gyrus is elevation
precentral gyrus belongs to which lobe
frontal
lateral sulcus divides which lobes
frontal and temporal
where is the cingulate gyrus
in a curve around the corpus callosum
corpus callosum connect …
the two hemispheres
types of fibre in corpus callosum
commisural
which lobes each have a superior, middle and inferior gyrus
frontal lobe and temporal lobe
lobe of hearing and smell
temporal
what is a dominant hemisphere
the side of tha brain which has stronger control/input to a certain function
right handed people are which sided dominant
left sided
what is area 4
precentral gyrus - primary motor cortex
where is broca’s area of motor speech
the inferior frontal gyrus area 44, 45
what is area 44 and 45
broca’s area
most medial parts of motor homunculus
toes, leg, knee
most lateral parts of motor homunculus
tongue, mouth, face
what is the most lateral part of the sensory homunculus
intra-abdominal
what are areas 3, 1 and 2
post-central gyrus - primary sensory cortex
sensory purpose of superior parietal lobule
interpretation of general sensory information
which lobe is divided into an inferior and superior lobule
parietal
where do we get our conscious awareness of our body
superior parietal lobule
area 41, 42
wernicke’s area
where is wernicke’s area
the superior temporal gyrus
function of wernicke’s area
understanding speak
where is the primary auditory cortex
superior temporal gyrus
where is the primary olfactory cortex
inferior temporal gyrus
area 17
primary visual cortex on occipital lobe
true/false the calcarine sulcus divides area 17 and 18
false - area 17 is on both sides of the calcarine sulcus
visual association cortex
area 18, 19 - interpretation of the visual
where is the limbic lobe
the medial surface of the cerebral hemisphere
parts of the limbic lobe
cingulate gyrus, hippocampus, amygdala and parahippocampal gyrus
which part of the brain is responsible for processing and understanding speech
wernicke’s area in the dominant hemisphere
area of brain responsible for forming speech
broca’s area
what is aphasia
problems with speech
fibres that travel between subcortical areas and the cortex
projection fibres
fibres that travel between areas of cortex
association fibres
function of basal ganglia
control movement by connecting to motor cortex (starting and stopping of movements)
components of basal ganglia
caudate, lentiform nucleus (putamen and globus pallidus) and substantia nigra
shape of caudate nucleus
it follows the curve of the lateral ventricle and has the putamen at its middle. Looks like a little foetus with a ball in the middle
components of lentiform nucleus
globus pallidus and putamen
what is lateral to the caudate and thalamus in a v-shape on transverse section
internal capsule
what is lateral to the internal capsule
the lentiform nucleus
which parts of the basal ganglia are input areas from the motor cortex and thalamus
the caudate nucleus and putamen
which parts of the basal ganglia are output regions receiving from the caudate nucleus/putamen
globus pallidus and substantia nigra
where does the globus pallidus send its projection
to the thalamus
