Cell Biology 9/7/99

	1) Isolated cardiac cells prepared with trypsin and hydrogenase
	2) Thin section of cardiac muscle. See the intercalating disks. They myofibrils are branched. Big grey patches are the mitochondria. Nucleus in the upper left corner.
	3) Intercalating Disks - Thinner slice of cardiac muscle.
	4) Gap Junctions
	5) Myocytes - Lower middle = FA = Adherins junctions MA = Macula adherins N = Gap Junctions = Nexis junctions on lateral surfaces or between the FA or MA junction.
	6) Thyroxin can switch on different sets fo contractile => faster contractile proteins => Cardiac skeletal type heterogeneity
	7) Smooth Muscle
	8) Thick, thin and microvessels
	9) Again see the filaments - Thick => myosin that exist in filamentous state when it contracts Thin => Activated by increased cytosolic Calcium, They function in sliding filament action Intermediate => Interconnected dense bodies
	10) SEM of Relaxed Smooth Muscle
	11) SEM of Contracted Smooth Muscle
	12) Neuron- See Nissle body, RER, Nucleus (Very euchromatic), Lysosomes
	13) Neuropil
	14) Synaptic spine or Dendritic Knobs
	15) Neuromuscular junction synapse
	16) Motor Neuron
	17) Synapse in a central nervous system