lecture13nth - Cardiovascular system transport pump(heart...

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Unformatted text preview: Cardiovascular system transport pump (heart), tubes (blood vessels), and fluid (blood) Figure 14-1 Blood moves from areas of higher pressure to lower pressure Figure 14-2 MOVIE TIME! http://www.oneonta.edu/academics/Chem399/ Figure 14-4a Flow is proportional to (radius)4, so a vessel with twice the radius has 2 x 2 x 2 x 2 = 16x the volume flow rate Figure 14-5 Velocity of blood depends on volume flow rate and cross-sectional area Figure 14-6 Figure 14-7g Cardiac muscle cells Intercalated disks - desmosomes (hold cells together, transmit force) - gap junctions (electrical signals transmitted between cells Figure 14-10b What are the events of contraction in a cardiac muscle cell and how are they different/similar to contraction in skeletal and smooth muscle cells (REVIEW - see Table 12-3)? Figure 14-11, step 1 Cardiac muscle - Ca++ involvement in AP lengthens AP Figure 14-13 Skeletal vs cardiac muscle - refractory period Figure 14-14a Skeletal vs cardiac muscle - refractory period Figure 14-14c ...
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This note was uploaded on 12/01/2010 for the course BIO SCI Bio Sci E1 taught by Professor Catherineloudin during the Spring '10 term at UC Irvine.

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