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neuro blood supply

neuroanatomy- blood supply

internal carotid artery lies within the cavernous sinus
internal carotid artery supplies tributaries to the dura, hypophysis, tympanic cavity and trigeminal ganglion
internal carotid artery gives branches to the optic nerve, optic chiasm, hypothalamus, and genu of the internal capsule
central artery of retina branch of the ophthalmic artery, occlusion results in blindness, supplies inner 5 layers of retina
posterior communicating artery supplies optic chiasm nad tract, hypothalamus, subthalamus, and anterior half of the ventral portion of thalamus; arises from carotid siphon and joins posterior cerebral
anterior choroidal arises from the internal carotid; supplies the choriod plexus of the temporal horn of the lateral ventricle, hippocampus, amygdale, optic tract, lateral geniculate body, globus pallidus
anterior cerebral artery gives direct branches to optic chiasm; supplies the medial surface of the frontal and parietal lobes and corpus callosum: supplies leg and foot area of the motor and sensory cortices
anterior communicating artery connects two anterior cerebral arteries
middle cerebral artery supplies lateral convexity of the hemisphere and underlying insula; supplies trunk, arm, and face area of the motor and sensory cortices; supplies Broca’s and Wernicke’s
vertebral arteries is a branch of the subclavian artery
vertebral arteries joins its opposite partner to form the basilar
posterior inferior cerebellar artery gives rise to posterior spinal artery; supplies the dorsolateral zone of the medulla; supplies the inferior surface of the cerebellum and the choriod plexus of the 4th ventricle; supplies CN IX and X
basilar artery formed by two vertebral arteries
pontine arteries supply the corticospinal tracts and CNVI
labrynthine artery perfuses the cochlea and the vestibular apparatus
anterior inferior cerebellar artery supplies the inferior surface of the cerebellum; supplies the facial nucleus,spinal trigeminal nucleas and tract, vestibular nuclei, cochlear nuclei, spinothalamic tract
superior cerebellar artery supplies the superior surface of the cerebellum and the cerebellar nuclei; supplies the rostal and lateral pons
posterior cerebral artery formed by bifurcation of the basilar artery; provides major blood supply to midbrain; supplies occipital lobe, visual cortex and inferior surface of the temporal lobe
arterial circle of willis formed by the anterior communicating, anterior cerebral, and internal carotid, posterior communicating, and posterior cerebral arteries
arterial circle of willis gives off penetrating arteries to supply the ventral diencephalons and the midbrain
meningial arteries supply the intracranial dura
meningial arteries usually arise from the branches of the external carotid artery
anterior meningial arteries arise from the anterior and posterior ethmoidal arteries; supply the dura of the anterior cranial fossa
middle meningial arthery branch of the maxillary artery; enters cranium via foramen spinosum; supplies most of the dura; laceration results in epidural hematoma
posterior meningeal arteries are branches of ascending pharyngeal, vertebral, and occipital arteries; supply the dura of the posterior cranial fossa
superficial cerebral viens devoid of valves and lie along surface sulci
superficial cerebral viens arise form the cortex and subcortical medullary substance and terminate in the dural sinuses
superficial cerebral viens lie superficial to arteries and are considered meningeal veins
superior cerebral veins drain into the superior sagittal sinus; laceration results in subdural hematoma
middle cerebral vein overlies lateral sulcus and drains into cavernous sinus; communicates with the transverse sinus
inferior cerebral veins drain the inferior lateral and basal surface of the hemisphere
medial cerebral veins drain medial surface of hemisphere, including the corpus callosum, into the inferior sagittal sinus
basal vein drains the orbital surface of the frontal love, insula, and sorpus stiratum; encircles the brainstem and drains into the great vein of galen
internal cerebral veins paired parallel vessles situated lateral to the midline and on the roof of the 3rd ventricle
internal cerebral veins join the great vein of galen
great cerebral vein of galen located below the splenium of the corpus callosum in transverse cerebral fissure
great cerebral vein of galen receives two internal cerebral veins, two basal veins, two occipital veins and the posterior callosal vein
great cerebral vein of galen joins the inferior sagittal sinus and the straight sinus
venous dural sinuses are endothelial lined valveless channels whose walls are formed by two layers of dura matter
venous dural sinuses collect blood from the superficial and deep cerebral veins and the calvarium and represent the major drainage pathway of the cranial cavity
venous dural sinuses receive arachnoid granulations and absorb CSF
superior sagittal sinus extends from the foramen cecum to the internal occipital protuberance and usually terminates in the right transverse sinus; communicates with the nasal emissary veins; receives superficial cerebral veins, diploic veins, and parietal emissary veins
inferior sagittal sinus courses in the inferior free edge of the falx cerebri; joins the great cerebral vein to form the straight sinus
straight sinus is formed by the great cerebral vein and the inferior sagittal sinus; terminates at the internal occipital protuberance and usually drains into the left transverse sinus; drains the superior surface of the cerebellum
left and right transverse sinuses originate at the confluence of the sinuses and coutse anterolaterally along the edge of the entorium cerebelli to become the sigmoid sinus; receives venous blood from the termporal and occipital lobes
confluence of the sinuses lies at the internal occipital protuberance; is formed by the unsion of the superior sagittal, straight, and transverse sinuses
sigmoid sinus is a continuation of the transverse sinus; passes inferiorly and medially into the jugular foramen
spenoparietal sinus lies along the curve of the lesser wing of the sphenoid bone and drains into the cavernous sinus
superior petrosal sinus extends from the cavernous sinus to the sigmoid sinus; receives tributaries from the pons, medulla, cerebellum, and inner ear
inferior petrosal sinus passes between glossopharyngeal (9) and vagal nerves and drains into the jugular bulb; receives major venous drainage from the inferior portion of the cerebellum; drains the cavernous sinus and clival plexus into the internal jugular vein
cavernous sinus surrounds sella turcica and the body of the sphenoid bone; contains within the simus, the internal carotid artery, sympathetic plexus, and abducent nerve; contains within the lateral wall of the sinus, the CN III, IV, V1, V2; receives blood from
Created by: swohlers