Practice Quiz: Autonomic Nervous System

When the sympathetic nervous system is activated, which of the following will happen?

the heart speeds up

Which of the following best defines the word “preganglionic”?

Extending from the CNS to an autonomic ganglion

Which of the following best defines the word “postganglionic”?

Extending from an autonomic ganglion to the target organ

The pre-ganglionic neurons of the parasympathetic nervous system secrete…

acetylcholine

The post-ganglionic neurons of the parasympathetic nervous system secrete…

acetylcholine

The ganglia of the sympathetic nervous system are all…

near the vertebrae

Which of the following nerves carries parasympathetic signals to the heart?

CN X

Which of the following nerves carries sympathetic signals?

T7

Which of the following is an effect of the sympathetic nervous system?

Decreasing activity in the stomach

How many axons does an autonomic signal pass through on its way from the spinal cord to the target organ?

2

What neurotransmitter is secreted by the post-ganglionic axon of most sympathetic pathways?

Norepinephrine

What neurotransmitter is secreted by the pre-ganglionic neurons of the sympathetic nervous system?

Acetylcholine

Preganglionic axons in the sympathetic nervous system are ____ and preganglionic axons in the parasympathetic nervous system are _____.

short … long