lecture 22 - movement & sensation Flashcards
What are the major sulci/fissures of the brain (4)?
Central, lateral and parietal-occipital sulcus, transverse fissure
What parts of the brain does the central sulcus divide?
Frontal and Parietal lobes
What parts of the brain does the lateral sulcus divide?
Frontal and temporal lobe
What parts of the brain does the parieto-occipital sulcus divide?
Parietal and occipital lobes.
What parts of the brain does the transverse fissure divide?
The cerebellum from the temporal and occipital lobes.
What are the functions of the frontal lobe?
Motor control (top) & language and personality (bottom)
What are the functions of the temporal lobe?
Memory and hearing
What are the functions of the parietal lobe?
Somatosensory
What are the functions of the occipital lobe?
Vision (contains visual cortex)
What is the diencephalon?
Small part within the centre of the brain, that contains the thalamus and hypothalamus.
What is the corpus callosum?
A bundle of nerve fibres (myelinated axons) that connect the two hemispheres of the brain.
What is the colour of the corpus callosum, and why is it this colour?
White - contains fat, in the form of myelin on the axons bound with oligodendrocytes.
Where is the cerebellum located?
At the bottom/back of the brain.
Where does the brain stem attach to the rest of the brain?
At the thalamus (of the diencephalon)
What are the parts of the brain stem, from superior to inferior?
Midbrain, pons, medulla oblongata
Where does the brain stem connect to the spinal cord?
Through the foramen magnum to the medulla oblongata
What is the structure and appearance for the cerebral cortex?
Made up of cell bodies (grey matter)
What is white matter?
Tracts of myelinated axons within the brain.
What are the 3 types of white matter?
Commissural, projection and association tracts.