L33 Psych 3604 Lecture Notes - Lecture 2: Central Nervous System, Peripheral Nervous System, Grey Matter
Document Summary
Lateral fissure divides frontal and temporal lobe. Central sulcus divides frontal and parietal lobe: gray vs white matter. Gray matter cell body of neurons live in gray matter. White matter axons travel into white matter: cortex is a layered structure different type of neurons populates in different densities. Layer 1 closest to surface (where a lot of dendritic neurons are (receive neurotransmitters) Layer 6 closest to white matter. Layer 1 to 3 integrative functions. Layer 4 input of sensory info. Layer 5 to 6 output to other parts of brain: ventricles structure in middle brain filled with fluid, called cerebrospinal fluid (csf) (4 major ventricles) Transfer waste products out of brain, transfer nutrients into the brain: neurons need continues supply of blood and oxygen and glucose. Blood flow disturbed to an area of brain stoke. Cell death: ischemia transient loss of blood that can cause cell death.
