Nerve impulses are sent to slow the heart's rate of contraction. the nerve fibers sending these signals will most likely belong to which division of the nervous system?
1) sensory (afferent) division
2) somatic nervous system
3) sympathetic division
4) parasympathetic division

The correct answer is option 4.  Parasympathetic division.

Explanation:

The parasympathetic division is one of the three divisions of the ANS or autonomic nervous system. It also helps in the rest system or digest system as it saves energy by slowing the heart pace by slowing the rate of contraction. This is performed with the help of nerve fibers that send signals.

Parasympathetic nerve division increases the intestinal and activity gland. This nerve division helps in relaxing the sphincter muscle in the GI tract.

Thus, the correct answer is option D.

cuz they cant breath

explanation:

c is the answer : )               your welcome