Lissencephaly
Lissencephaly is a congenital malformation in which
Normal pattern of sulci fails to develop
Gyrencephalic Brain
What is a gyrencephalic brain?
Normally sulcated brain is called gyrencephalic brain
What is lentiform nuclei?
What is lentiform nuclei?
Putamen and globus pallidus together are shaped like a lens, hence the term lenticular or lentiform nuclei
Basal ganglia
Basal ganglia consists of -
Basal ganglia includes
Caudate, putamen, and globus pallidus
Subthalamic nucleus and substantia nigra
Dysfunction of nonmotor circuits of the basal ganglia
Dysfunction of nonmotor circuits of the basal
ganglia has been implicated in which disorder?
Tourette’s syndrome and obsessive compulsive disorder
Which structure lies between the two thalami?
Which structure lies between the two thalami?
Third ventricle lies between the two thalami
Dorsal aspect of the thalamus forms the floor of -
Dorsal aspect of the thalamus forms the floor of -
lateral ventricle
Thalamic syndrome (DejerineRoussy) is characterized by
Thalamic syndrome (Dejerine Roussy) is characterized by
contralateral hemianesthesia and pain due to infarction of the thalamus.
Tonsils are herniated below the foramen magnum due to which congenital anomaly ?
In which condition Cerebellar Tonsils are herniated below the foramen magnum due to congenital anomaly
Arnold-Chiari malformation,
Tonsils are herniated below the foramen magnum due to congenital anomaly and is not due
to increased intracranial pressure
What are the lobes of cerebellum?
What are the lobes of cerebellum?
Cerebellum is divided into three lobes:
anterior, posterior, and flocculonodular lobe
Which lobe of cerebellum is phylogenetically the oldest?
Which lobe of cerebellum is phylogenetically the oldest?
Flocculonodular lobe - is phylogenetically the oldest, and is referred to
as the archicerebellum
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