Cerebrum MCQ 13+

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• The visual cortex
  ক

  Is also called cortical retina

  খ

  Has point to point projection from the retina

  গ

  Receives blood supply from carotid & vertebral artery

  ঘ

  Is identified by the striate of gennari

  ঙ

  Contains visuo-psychic area only
• The internal capsule of the brain
  ক

  Lies lateral to the thalamus

  খ

  Contain pyramidal tract fibres in its genu

  গ

  Is wedge shaped in coronal section

  ঘ

  Radiates toward the calcarine sulcus known as corona radiata

  ঙ

  Is supplied by the thalamo-striate artery
• The internal capsule of brain
  ক

  Lies lateral to the caudate nucleus

  খ

  Carries somatosensory fibres in the posterior limb

  গ

  Carries pyramidal tract fibres in the posterior limb

  ঘ

  Carries the visual radiation

  ঙ

  Carries fibres from the ventroanterior nucleus in the posterior limb
• The ventrolateral nucleus of the thalamus is an important synaptic site for fibers from the
  ক

  Cerebellum and basal ganglia

  খ

  Medial lemniscus

  গ

  Superior colliculus

  ঘ

  Amygdala and hypothalamus

  ঙ

  Thalamus
• Regarding cerebral blood flow
  ক

  It is 15% of the total cardiac output

  খ

  Normal flow is 50 ml/100gm/min

  গ

  It is auto regulated at BP 60-140 mm of Hg

  ঘ

  Irreversible brain damage may occur at when it is <8 ml/100gm/min

  ঙ

  Normal function is not impaired when it is less than 23 ml/100gm/min
• Fibres of the corpus callosum
  ক

  Unite the two cerebral hemispheres

  খ

  Those passes to the occipital lobe constitute forceps posterior

  গ

  Unite the olfactory areas of the two sides of the brain

  ঘ

  Pass in the internal capsule to the frontal lobe

  ঙ

  Unite adjacent and widely separated gyri in the same hemisphere
• Exteroceptive sensations reach the thalamus through the
  ক

  Medial lemniscus

  খ

  Spinothalamic tracts

  গ

  Trigeminal lemniscus

  ঘ

  Solitariothalamic tract

  ঙ

  Olfactory tract
• Cells of cerebral cortex include
  ক

  Stellate

  খ

  Fusiform

  গ

  Pyramidal

  ঘ

  Purkinje

  ঙ

  Schwann
• Components of prefrontal cortex include
  ক

  Medial frontal cortex

  খ

  Brodmann's area 9

  গ

  10

  ঘ

  Brodmann's area 11

  ঙ

  12

  চ

  Wernick's area

  ছ

  Caudate nucleus
• An arteriogram of the cerebral vessels demonstrate that the
  ক

  Spinal arteries arise from vertebral system

  খ

  Middle cerebral arteries arise from the internal carotid system

  গ

  Posterior communicating arteries join the vertebral and internal carotid systems

  ঘ

  Vertebral and internal carotid systems are joined by the anterior communicating artery

  ঙ

  Circle of Willis is an incomplete circle
• The hypothalamus
  ক

  Sends efferent fibres to the midbrain reticular nuclei

  খ

  Is linked to the pituitary stalk by the tuberoinfundibular tract

  গ

  Receives afferent fibres from the amygdaloid body through the fornix

  ঘ

  Is connected to the anterior lobe of the pituitary by median stalk

  ঙ

  Is related posteroinferiorly to the posterior perforated substance
• The cerebral cortex is functionally organized in such a way that
  ক

  Motor planning occurs in the secondary motor areas

  খ

  The visual field of the right eye projects to both hemispheres

  গ

  A prefrontal damage can severely affect the personality of an individual

  ঘ

  Recognition of voice takes place principally in the inferior temporal surface

  ঙ

  Damage to the sensory speech area causes meaningful but slow speech
• Central vestibular system contain/s
  ক

  Fastigial nuclei

  খ

  Vestibular nuclei

  গ

  Utricle

  ঘ

  Saccule

  ঙ

  Thalamus