B7-090 Gross Brain Lab Intro Flashcards
which lobe has a primarily motor function?
frontal
which lobe has a primarily sensory function?
parietal
divides the occipital lobe from the parietal
parieto-occipital sulcus
what differentiates the layers of the cerebral cortex?
number and type of neurons in each layer
layer of the cortex that receives information
4, internal granular
would be larger in sensory areas, lots of info coming in
layer of the cortex that sends information to the periphery
5, ganglionic layer
this will be larger in the motor cortex, lots of info going out
what layer of the cortex would you expect to be largest in a primary motor center?
5
what layer of the cortex would you expect to be largest in a primary sensory center?
4
divides the frontal lobe from the parietal
central sulcus
the central sulcus lies between the […] and [..] gyrus
precentral (primary motor cotex)
postcentral (primary somatosensory cortex)
divides the temporal lobe from the rest of the brain
sylvian fissure
broca’s area is located in the […] lobe
frontal
production of speech
broca’s
understanding of speech
wernicke’s
wernicke’s is located in the […] lobe
temporal
what layer of the cortex would you expect to be largest in a cortical association center?
3
fiber bundle that connects the right and left hemispheres
corpus callosum
sits on top of the corpus callosum
important role in learning and memory
cingulate gyrus
the gyri on either side of the […] represent primary visual cortex
calcarine sulcus
parts of diencephalon [3]
thalamus
hypothalamus
pineal gland (unpaired gland)
components of brainstem [3]
midbrain
pons
medulla
functions in maintaining balance, smooth movements
cerebellum
periaqueductal gray surrounds the […]
cerebral aqueduct
posterior circulation arises from
vertebral arteries
anterior circulation arises from
internal carotids
links the vessels in the posterior circulation to the anterior circulation
circle of Willis
blood vessels that supply midbrain [2]
posterior cerebral
superior cerebellar
what cranial nerve goes through the medulla?
hypoglossal XII
what cranial nerve lies in the midline of the midbrain?
occulomotor III
blood vessels that supply the cerebral cortex? [3]
posterior cerebral artery
middle cerebral artery (off internal carotid)
anterior cerebral artery
supplies the part of the cortex that controls body surface below the waist
anterior cerebral artery
subcortical structures that regulate the magnitude of movement
basal ganglia
fiber bundle that separates the thalamus and basal ganglia
internal capsule
structures of the forebrain [2]
telencephalon
diencephalon
structures of the midbrain
mesencephalon
structures on the hindbrain [2]
metencephalon
myelencephalon
[…] deficits are useful in localizing brain lesions
cranial nerve
posterior circulation arises from the [….]
vertebral arteries
anterior circulation arises from the […]
internal carotids
arteries supplying the midbrain [2]
posterior cerebral
superior cerebellar
arteries supplying the pons [2]
paramedian and circumfrential branches of the basilar
superior and anterior inferior cerebellar
arteries supplying the medulla [3]
anterior spinal
vertebral
posterior inferior cerebellar
artery supplying the lateral surface of the motor/somatosensory cortex
middle cerebral
deficits above the waist can indicate loss of blood via […] artery
middle cerebral
artery supplying the medial surface of the motor/somatosensory cortex
anterior cerebral
deficits below the waist can indicate loss of blood via […] artery
anterior cerebral
the thalamus is located in the […]encephalon
diencephalon
structure that regulates magnitude of movement
basal ganglia
fiber bundle that separates the thalamus and basal ganglia
posterior limb of internal capsule
originates from the internal carotid and travels between two cerebral hemispheres to supply the medial surface of the cortex
anterior cerebral artery
travels through the lateral fissure and spreads out to supply the lateral surface of the cortex
middle cerebral artery
supplies the occipital lobe and ventral surface of the cortex
posterior cerebral artery
supply the brainstem [2]
basilar artery
vertebral arteries
supplies lateral somatosensory cortex
middle cerebral artery
supplies lateral motor cortex
middle cerebral artery
supplies medial somatosensory cortex
anterior cerebral artery
supplies medial motor cortex
anterior cerebral artery
the anterior and middle cerebral arteries are part of […] circulation
anterior
anterior circulation arises from
internal carotids
posterior circulation arises from
vertebral arteries
precentral gyrus
primary motor cortex
postcentral gyrus
primary somatosensory gyrus
interprets information in the visual environment
primary visual cortex
the posterior limb of the internal capsule separates the […] from the […] medially
basal ganglia
thalamus
the anterior limb of the internal capsule separates the […] from the […]
caudate nucleus
putamen and globus pallidus
function of the caudate nucleus
motor function
function of the hippocampus
memory
function of the putamen
motor
degenerates in parkinson’s
substantia nigra
the medial surface of the occipital lobe is supplied by
posterior cerebral artery
supplies the medial surface of the cortex
the anterior cerebral artery
supplies the lateral surface of the frontal and parietal lobe
middle cerebral artery