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Cerebellum and blood supply to brainstem
Terms in this set (22)
Fissure that separates the anterior and posterior lobes of the cerebellum
Fissure that separates the posterior lobe from the flocculonodular lobe
Vermis and Intermediate Area
Functional division of cerebellum, works with concurrent coordination. Area includes ICP and MCP, fastigial (middle cerebellar adjacent to midline), globose (posterior interposed), and embiloform (anterior interposed) nuclei
Functional division of cerebellum, works with planning. Area includes SCP and MCP and dentate nuclei
Functional division of cerebellum, works with balance. Area includes all three peduncles and fastigial nucleus.
Superior Cerebellar Artery
Blood supply to superior lobe of cerebellum and SCP
Anterior Inferior Cerebellar Artery
Blood supply to lateral hemispheres of cerebellum plus the MCP and floculus
Posterior Inferior Cerebellar Artery
Blood supply to the posterior cerebellum plus ICP, nodulus, and vermis
Posteriomedial Artery Group
Blood supply to anterior midbrain nuclei (oculomotor, edinger westphal, mesencephalic, red) and tracts (corticopontine, corticobulbar, tectospinal, substantia nigra)
Blood supply to posterolateral and tectum of midbrain including the periaqueductal gray, superior and inferior colliculi, ALS, MLS, corticopontine and spinal tracts, and brachium of inferior colliculi.
Superior Cerebellum Artery
Blood supply that helps with troclear nerve and inferior colliculus
Medial Branch of Basilar Artery
Blood supply to medial pons including corticospinal tract, abducens nerve, and medial lemiscus
Lateral Branch of Basilar Artery
Blood supply to lateral pons including ALS and Anterior spinocerebellar tract
Anterior Spinal Artery
Blood supply to medulla including the pyramids, MLS, and hypoglossal nerve
Posterior Inferior Cerebellar Artery
Blood supply to medulla including the posterior and anterior spinocerebellar tract, ALS, spinal trigeminal tract, and rubrospinal tract
Of the paramedian branches of the basilar artery in caudal pons. Impacts the abducens nerve, corticospinal tract, and medial lemniscus. Results in ipsilateral inability to move eye laterally and contralateral hemiparesis.
Of the paramedian branches of the basilar artery in caudal pons. Impacts the facial nerve and corticospinal tract above the decussation. Results in bad facial nerve on same side and contralateral hemiparesis.
Midpontine Base Occlusion
Of paramedical and short circumferential branches. Impacts corticospinal tract above the decussation, trigeminal nerve as it emerges through the middle cerebellar pudencle. Results in contralateral hemiparesis, loss of pain, thermal and sense, in the face and paralysis of masticatory muscle, and ataxia.
Central Herniation (Transtentorial)
Herniation resulting in 1) space-occupying lesion in the supratentorial compartment elevates intracranial pressure 2) pushes diencephalon down into brainstem 3) press on cranial nerve nuclei that affect eye movements and pupil size 4) compress reticular formation and RAS-lose consciousness
Uncal Herniation (Temporal Lobe through the Tentorium)
Herniation resulting in 1) compression of midbrain 2) more likely to be asymmetrical and accompanied by double vision 3) may be fooled by weakness of the extremities on the side of the body opposite of the dilated pupil
Upward Cerebellar Herniation (through tentorium)
Hernation resulting in 1) compression of midbrain 2) may occlude branches of the superior cerebellar artery-infarct cerebellum 3) may compress cerebral aqueduct-non-communicating hydrocephalus (vomiting, headache, lethargy, decreased consciousness)
Herniation resulting in 1) compression of medulla and blood vessels 2) infarction of essential respiratory and cardiac center in the medulla (rapid loss of respiration and a failure of medullary cardiac activity)
THIS SET IS OFTEN IN FOLDERS WITH...
Neuro: Eye Anatomy and Histology
Spinocerebellum: Intermediate Zone
Tracts, Nuclei, etc.
Argyll-Robertson pupil ('Prostitute's pupil)
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