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Unformatted text preview: Fatigue in a muscle can have a lot of different causes! Figure 12-14 Figure 12-16 Figure 12-17a Figure 12-17d smooth muscle contracts more slowly (less fatigue) Figure 12-24 Stimulation in smooth muscles Figure 12-25 Some smooth muscles have unstable membrane potentials Figure 12-31a Muscle spindles stretch receptors in skeletal muscles "normal muscle cells" – extrafusal muscle fibers innervated by alpha motor neurons "muscle spindle cells" – intrafusal fibers innervated by gamma motor neurons Figure 13-3a Muscle spindles monitor muscle length and prevent overstretching Figure 13-4a Gamma motor neurons cause intrafusal fibers to contract Figure 13-5a ...
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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.
- Spring '10