NEUR 4000 Lecture : NROLecture4.docx
Document Summary
Readings: the cytoskeleton (pages 35 38, 40 41) Different child brain (part 1: http://www. youtube. com/watch?v=_hkzhl7ke20. Helps determine the shape of the cell (ii) internal organization. Dynamic, changing from moment to moment in response to cell s needs (iii) intracellular transport. Transport materials within the cytoplasm railroad track (iv) assembly of cells into tissues. Link cells together and to supporting material outside of cells. Mechanical strength and allow transfer of information (v) movement. Migration of white blood extension of nerve movement of cilia an flagella cells; cells, allow. Composed of smaller strands of tubulin braided together (pearls on a string) : microtubule-associated proteins (maps) (neuron specific type tau) Anchor the microtubules to one another and to other parts of the neuron. 5 nm in diameter (small) (same thickness as plasma membrane) Throughout neuron but more numerous in neurites. Two thin strands of actin protein braided together.
