Fig. 9. Kinematics of the dorso-ventral length of the I3 muscle during swallowing.
(A-D) Data from each of the four individual swallowing sequences plotted as
length (mm) as a function of time (ms). The left panels show the dorso-ventral
length of the I3 muscle at the lateral groove. The right panels show the
dorso-ventral length of the I3 muscle at the line of the jaws. (E) Normalized,
averaged and smoothed dorso-ventral lengths of I3 during the swallowing cycle.
Data are shown as mean ± 1 S.D. (F) Schematic diagrams indicating the
dorso-ventral length of I3 at the lateral groove for frames 1, 9, 18 and 22,
highlighted with a black line. The dorso-ventral lengths of I3 at the jaws for
frames 1, 9, 18 and 22 are shown on the right, highlighted with a black line.
Compare original frames in Fig.
5. For definitions of periods t1, t2 and t4, see
Materials and methods.
