Autonomic functions such as heart rate and the force of ventricular contraction,
blood pressure, and blood vessel diameter are controlled by autonomic reflexes.
These occur when nerve impulses pass through an autonomic reflex arc.
The reflex arc is going to be composed of several different structures.
First, the receptor such as the baroreceptors on the blood vessels
are going to receive a certain signal or stimuli.
The baroreceptors send information or receive information about the stretch of a blood vessel.
The second component of the reflex arc is the sensory neuron.
This neuron will send sensory information from the viscera to the central nervous system.
The third part of the autonomic reflex arc is going to be located
in the lateral horn of the gray matter of the spinal cord.
This is the integrating center.
This is the portion where the decision-making process will happen.
After the decision is made, a motor neuron will take that decision
and output that information toward the effector.
And then finally, the effector or the visceral organ
is going to receive the instructions and act accordingly.
Recall, feedback loops are an example of a reflex arc.