L-22 Flashcards
What are the names of the 4 main lobes of the brain?
- Perietal Lobe
- Frontal lobe
- occipital lobe
- temporal lobe
What is the same of the sulcus between the Occipital and parietal lobes?
Parieto-occipital sulcus
What is the name of the sulcus between the Frontal and parietal lobe?
central sulcus
What is the name of the sulcus around the temporal lobe?
lateral Sulcus
What is the name of the division between the cerebrum and the cerebellum?
Transverse fissure
What is the function of the Frontal lobe?
- motor control
- language and personality
What is the function of the Parietal lobe?
- somatosensory
What is the function of the occipital lobe?
Vision
What is the function of the temporal lobe?
- memory
- hearing
What are the 3 regions of the brain stem?
- midbrain
- pons
- medulla oblongata
Where is the diencephalon located in the brain?
Inferior to the corpus callosum
What are the two sections of the diencephalon?
- Thalamus
- Hypothalamus
Where is the cerebral cortex located?
Superficially in the brain
How many types of white matter are in the brain and what are they called?
- 3
- Comissural tracts
- Projection tracts
- Association tracts
What are the features of Commissural tracts?
Axons cross between hemispheres of brain through the corpus callousum
What are the features of Projection tracts?
Axons extend between cortex and other CNS areas outside cerebrum e.g. corticospinal tract
What are the features of association tracts?
Axons stay on same side within cerebral cortex
Communication between brain areas
Can be long or short
Where is the primary motor cortex located?
On the pre-central gyrus
Where is the Primary somatosensory cortex located?
On the post-central gyrus
If an area of the body is represented by a large piece of the primary motor/ somatosensory cortex it is likely:
- a region of dense axon terminals
- very mobile and sensitive
Damage to the primary motor cortex causes:
- muscle weakness or paralysis in associated body part on opposite side of body to damage
Damage to the primary somatosensory cortex causes:
Loss of sensation in associated body part on opposite side to damage
