Sph 282
Terms
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- What are the 4 lobes of the cortex
-
*Frontal
*Parietal
*Temporal
*Occipital - What are the basic divisions o the nervous system
-
*Central
-brain
-spinal cord
*Peripheral
-Everything else
-Cranial nerves - How many nerve cells do we have
- 10^12
- Properties of cells are determined by what
- Genes
- How many glial cells do we have
- 10^14
- What do glial cells help do
- Support the nerve cells in the brain, + more
- Cells communicate by connections called what
- Synapses
- What is accompolished by the nervous system
- Perception
- What does gray matter correspond to
- Cell bodies of neurons and glial cells
- What does white matter correspond to
- Tracts transversing the brain and spinal cord and connecting different regions
- What are the cortical layers
-
1. neurons "belong" to specific layers and send their processes to other specific layers
2. different regions of the cortex have different layering patterns
3. Precise writing withing and between regions - What are the basic parts of a neuron
-
*Cell body
*axon
*dendrites
*synapses - The cell body contains what basic parts
-
1. cytosplasm
2. nucleus
3. ribosomes
4. mitochondria
5. cytoskeleton - Cytosplasm includes what
- The cell membrane, including the various organelles
- What is cytosol
- The internal fluid of the cell, is gel-like, mostly water with a high concentration of protein
- How is cytosol at the molecular level
- Highly organized
- Where is genetic material and the chromosones located
- Nucleus