Sympathetic innervation of the heart

a: increases the heart rate
b: decreases the heart rate
c: increases the force of contractions
d: decreases the force of contractions
e: has no effect on contraction force
 
A.  a, c
B.  b, d
C.  a, d
D.  b, e
E.  a, e


A

Anatomy & Physiology

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