Describe the makeup of a functional column.
Afferents come up, innervate a PC along many of its spines, which leads to activation of basket cells which inhibit nearby PCs.
Which cells are responsible for receiving or projecting in the cortex?
Granular cells- Receiving. PCs- projecting.
What are the major functions of the limbic system?
Emotion, control of visceral function, olfaction, and some aspects of memory.
Which regions are involved in emotion?
Orbital and Medial prefrontal cortex, amygdala, MD nuc of thalamus
Identify regions of the amygdala. Basolateral, medial, and central.
What are the functions of each of the regions of the amygdala and their connected regions?
Basolateral- emotion/experience; assoc. cortex
Central- Visceral control; hypothal/brainstem
Medial- olfaction; olfactory complex/hypothal
Describe the triangle between the amygdala, cortex, and thalamus.
What does the resting blood flow do in unipolar depressed patients?
When the amygdala becomes calcified, what effects are noted?
Loss of fear. Usually happens in late teens.
Identify the loss of the Amygdala.
Main functions of the Hippocampus?
Memory (remember what happens when you take out both temporal lobes) Important in converting short term into long term. Could have function in Alzheimer's...
Locate the hippocampus.
Identify the hippocampus.
What are the major cell types within the hippocampus and the dentate?
Dentate- granule cell; Hippocampus- PC.
What are the major layers of the Hippo and dentate?
What is the major transmitter in the hippo?