Neurology - Cortical organisation and function Flashcards
How are areas of the cortex classified?
52 regions based on cytoarchitecture - cell size, spacing or packing density and layers
Primary motor cortex
4
Primary somatosensory coretx
123
Behind central sulcus
Frontal lobe functions?
Language
Cognitive functions (executive function - planning and decision-making) Regulate and initiate motor function, Attention
Memory
Parietal lobe functions?
Sensation - pain, touch
Sensory aspects of language
Spatial orientation
Self-perception
Occipital lobe
Process visual information
Temporal lobe
Processing auditory information
Emotions
Memories
Memories formed in structures within temporal lobes
Limbic lobe
Learning
Memory
Emotion
Motivation
reward
Insular cortex functions
Visceral sensation
Autonomic control
Interoception
Auditory processing
Visual-vestibular integration
White matter tracts
Connect cortical areas
Association fibres
within same hemisphere
Commisural fibres
homologous structures in L/R hemispheres
Projection fibres
Cortex to lower brain structures e.g. thalamus, spinal cord
Association fibre types
example
Short and long
Superior Longitudinal Fasciculus - frontal and occipital
Commisural fibre example?
Corpus callosum
Projection fibre tracts
Afferent and efferent (to cortex)