Neuro: week 7: Brain Stem and Cerebellum 0.0 / 5 ? PsychologyVisual SystemUniversityNone Created by: laurenlottie18Created on: 18-01-19 16:41 What is the Neuraxis? An imaginary line drawn through the centre of the length of the CNS 1 of 44 What does ventral mean? Downwards/ bottom of the skull. 2 of 44 What does caudal mean? Back of the skull 3 of 44 What does rostral mean? Front of the skull 4 of 44 What orientation of the skull does dorsal describe? Top 5 of 44 What does Ipsilateral mean? On the same side as another structure. 6 of 44 Your nose is (BLANK) to your mouth? Dorsal 7 of 44 What is the oldest part of the brain? Brainstem 8 of 44 Can you live without the brainstem? No 9 of 44 What is the role of the white matter? It serves as a conduit for ascending and descending pathways of higher brain centres. 10 of 44 What does reticulum mean? "little net" 11 of 44 What can damage to the reticular formation cause? Coma or Death 12 of 44 What is the reticular formation? Large interconnected network of nuclei and neurones 13 of 44 Where is the reticular formation located? Core of brainstem 14 of 44 Where is the Midbrain located? Top of the brain stem 15 of 44 What can damage to the midbrain cause? loss of consciousness/ coma 16 of 44 What part of the reticular formation is in the midbrain? Rostral 17 of 44 What are the two major parts of the midbrain? (1) Tectum, (2) Tegmentum 18 of 44 What does the Tectum do? Relays audio and visual information 19 of 44 What part of the Tectum, in the midbrain, controls auditory information? Inferior colliculus 20 of 44 What part of the Tectum, in the midbrain, controls visual information? Superior colliculus 21 of 44 What is the role of the Tegmentum? Motor centre 22 of 44 What parts do not belong to the Tegmentum? Inferior colliculus 23 of 44 What part of the midbrain is implicated in Parkinson's disease? Substantia Nigra 24 of 44 Where are the pons located? Middle of the brainstem 25 of 44 What are the two main structures of the pons? (1) Pontine nucleus, (2) Cereballar peduncles 26 of 44 What happens if damage occurs to the pontine nucleus or cerebellar peduncles? Imparied coordinaiton of movement and/ or posture 27 of 44 What is total locked-in syndrome? Eyes are also paralysed 28 of 44 What part of the brainstem is implicated in locked in syndrome? Lesions in ventral pons 29 of 44 Where is the medulla located? Lowest part of the brainstem 30 of 44 What end of the reticular formation does the medulla contain? Caudal 31 of 44 What can occur from damage to the medulla? Wallenberg syndrome 32 of 44 What part of the brain does the cerebellum belong to? Metencephalon 33 of 44 How many hemispheres does the cerebellum have? 2 34 of 44 How does the cerebellum function? Ipsilaterally 35 of 44 What percentage of brain neurons does the cerebellum account for? >50% 36 of 44 How is the cerebellum attached to the rest of the brain? Via the brainstem, particular by the cerebellar peduncles. 37 of 44 How is cerebellar function NOT involved in motor control? Initiation of movement 38 of 44 What is cerebellar ataxia? Issues with balance, particularly manifesting in walking difficulty. 39 of 44 What is an intention tremor? Slow tremor of the extremities that occurs at the end of a purposeful movement 40 of 44 What connects the cerebellum to the brainstem? Cerebellar peduncles 41 of 44 Which reticular formation does the pons belong too? Metencephalon 42 of 44 Which reticular formation does the midbrain belong too? Mesencephalon 43 of 44 Which reticular formation does the medulla belong too? Myelencephalon 44 of 44
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