15.
b
a
c
d
16.
b
The Bundle of HIS is a collection of cardiac fibers through which the
impulse travels on its way to the Purkinje fibers. (para 2-17c)
17.
c
18.
d
A decrease in the efficiency of the pumping of the heart, which
19.
a
A special structure which filters the lymph fluid. (para 2-22c)
End of Lesson 2
MD0806
2-36