L22 Flashcards
Name the 4 dotted lines
-Central Sulcus
-Parieto-occipital sulcus
-Lateral Sulcus
-Transverse fissure
Function of central sulcus
Seperates front and paritel lobes
Function of parieto-occipital sulcus
Separates parietal and occipital lobes
Function of Lateral Sulcus
Separates temporal lobe from frontal and parietal lobes
Transverse fissure
Separates cerebrum from cerebellum
What does the frontal lobe control?
Superior region: motor control
Inferior posterior: language and personality
What does the parietal lobe control?
Somatosensory
What does the occipital lobe control
Vision
What does the temporal lobe control?
Memory and Hearing
Label the parts of the brain
-Cerebral cortex
-Corpus callosum
-Diencephalon (Thalamus and hypothalamus)
-Midbrain
-Pons
Medulla oblongata
-cerebellum
Name the labelled parts of the brainstem
-Diencephalon
-Midbrain
-Medulla Oblongata
What are the 3 types of white matter in the brain?
-Commisural tracts
-Projection tracts
-Association tracts
NAme the labels
-Cerebral Cortex
-Lateral Ventricles
-Deep nuclei (deep white matter)
-White matter ( 3 types)
What are commissural tracts
Tracts (bundles of axons in CNS)
-Axons cross from both sides of cerebral hemispheres
Projection tracts
-Axons extend between cortex and other CNS areas outside cerebrum, eg (corticospinal tract)
What are association tracts?
Axons on the SAME side within the cerebral cortex
-Communication between brain areas, can be short or long distance
Name the labels
-Pre-central gryus (Primary motor cortex)
-Post central gyrus
((primary somatosensory cortex)
Primary Motor Cortex organisation
-Precentral gyrus functions as the primary motor cortex
-Specific regions of motor cortex control specific regions of the body
-(larger the area of the motor cortex the more complex movements
What happens if there was damage to a section of the cerebral primary motor cortex?
-Damage on motor cortex causes weakness/paralysis in the region of corresponding location of damage on the opposite side
Organisation of Primary somatosensory cortex
-Has maps of regions of the body, Specific regions of cortex recieve sensory information from specific regions of the body
What happens if a region of cerebral somatosensory cortex is damaged?
-Ascending information has no place to go and so loss of perception and sensation of touch in the area of the body on opposite side
