Week Two - Introduction Flashcards
The cerebral hemispheres are separated by the…
Longitudinal and transverse fissure
True/False - There are no functions that are lateralised to one side
False, there are some functions that are lateralised, however many functions need both hemispheres
-it’s not so black and white
Most people are ? Hemisphere dominant for language
Left
The gyri are the…
Hills
The sulci are the…
Valleys
Where is Broca’s area located in the brain?
The frontal lobe
What is the cerebral cortex?
A thin shell of grey matter on the surface of the cerebral hemispheres
What is decussation?
The crossing over of the sensory and motor pathways across the midline
Overview of the frontal lobe
- Largest lobe
- Broca’s area
- primary motor area
- prefrontal cortex
Overview of the parietal lobe
Primary somatosensory area
Overview of the temporal lobe
- Wernicke’s area
- language comprehension, spoken and written gestures
- Primary auditory area
- Heschl’s gyrus
Overview of the occipital lobe
- Smallest lobe
- Primary visual area
What are the grey matter structures within the cerebrum?
- Basal ganglia
- striatum
- globus pallidus
-Amygdala
- Diencephalon
- thalamus
- hypothalamus
What is cerebral white matter composed of?
Numerous interlacing tracts
What are the main types of of white matter bundles in the cerebrum?
- Association fibres
- linking cortical areas within a hemisphere
- Commissural fibres
- Cross the midline to enter the opposite hemisphere
- corpus callosum
- Projection fibres
- passing to and from the cerebral cortex
- most travel through the corona radiata
- axons from the corona radiata gathered into internal capsule
- efferent and afferent fibres
