Cerebrum B7 Flashcards
What is the Telencephalon made up of?
Cerebral Cortex
Subcortical region up until Diencephalon
What is the Diencephalon made up of?
Thalamus
Hypothalamus
What is the region receiving sensory input?
Primary sensory cortex
postcentral gyrus, gets input from VPL and VPM nucleus
What is the origin of Corticospinal/ corticonuclear projections?
Primary motor cortex: Precentral gyrus (all upper motor neurons)
What processes more complex information than primary cortex with sensory functions, and has motor function that plans motor movements, projects to primary motor cortex
Secondary association cortex
Input from several secondary association cortex of more than one sensory/ motor system.
Tertiary Association Cortex
This connects Occipital, Parietal, and Frontal lobes.
Superior Longitudinal Fasciculus
This connects the frontal to the Occipital Fasciculus.
Front-Occipital Fasciculus
This connects Temporal and frontal Lobes
Uncinate Fasciculus
This connects language areas: Wernicke’s and Broca’s areas.
Arcuate Fasciculus
This connects Occipital and Temporal lobes
INferior Longitudinal Fasciculus
This connects throughout CIngulate and Parahippocampal Gyri
Cingulum bundle
This connects neighboring gyri (of same hemisphere)
Short association fibers
U fibers
What compartment makes a patient aware of person, place, and time
- CN1 and CN2 - Olfactory and visual systems - Language, cognition, memory - Emotional and Behavioral Regulation
Supratentorial compartment
What supplies the lateral surface of cortex
- Basal ganglia branch off of this... - blockage here deprives most of hemisphere
MCA
What supplies the Orbitofrontal cortex?
ACA
What supplies most if not all of ventral surface of Temporal and occipital lobes, and some lateral surface of cortex
PCA
______________ can be from smaller diameter vessels, and can collapse if severe drop in BP or hypoxia.
Watershed infarct
What do you see with an Internal carotid artery dye?
MCA and ACA
What do you see with a vertebral artery dye?
PCA
What is an example of a Focal (with localizing signs) and insidious onset temporal profile.
Tumors
Meningiomas, Astrocytomas, Glioblastoma
- Associative learning
- Stimulus response learning
- Reward and fear driven behavior
- Psychiatric disorders (e.g. PTSD)
Amygdala
- Critical for long-term memory
- Helps cortex store memories
- Regulates emotion and stress response
- Interactions with hypothalamus
Hippocampus
